ColorSpace.php ➔ fu() - Code Metrics - Inspection of "Merge pull request #11 from nabble/analysis-qJD3dW" - nabble/ajde - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 470825...143e87 )

by Joram van den

created 2016-09-18 19:56 UTC

ColorSpace.php ➔ fu() A

↳ Parent: ColorSpace::XYZ_Lab()

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
dl	0
loc	8
rs	9.4285
c	0
b	0
f	0

1		<?php
2
3		/*
4
5		Color Space : v1.25 : 2009.04.20
6		————————————————————————————————
7		XYZ <-> Luv <-> LCHuv
8		XYZ <-> Lab <-> LCHab
9		RGB <-> XYZ <-> xyY
10		RGB <-> HSL
11		RGB <-> HSV <-> RYB
12		RGB <-> CMY <-> CMYK
13		RGB <-> HEX <-> STRING
14
15		*/
16
17		class ColorSpace
18		{
19		private $RYB_H = [];
20		private $H_RYB = [];
21		private $_XYZ_RGB = [];
22		private $White;
23		private $_xyY;
24
25		public function __construct()
26		{
27		$wheel = [
28		[0, 0],
29		[15, 8], // Red
30		[30, 17],
31		[45, 26], // Orange
32		[60, 34],
33		[75, 41], // Yellow
34		[90, 48],
35		[105, 54], // Lime
36		[120, 60],
37		[135, 81], // Green
38		[150, 103],
39		[165, 123], // Teal
40		[180, 138],
41		[195, 155], // Cyan
42		[210, 171],
43		[225, 187], // Azure
44		[240, 204],
45		[255, 219], // Blue
46		[270, 234],
47		[285, 251], // Indigo
48		[300, 267],
49		[315, 282], // Purple
50		[330, 298],
51		[345, 329], // Pink
52		[360, 0],
53		];
54
55		$a;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$a` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
56		$b;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$b` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
57		$i;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$i` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
58		$H;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$H` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
59		$_H;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$_H` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
60		$H_;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$H_` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
61
62		for ($H = 0; $H < 360; $H++) {
63		$H_ = false;
64		$_H = false;
65
66		for ($i = 0; $i < 24; $i++) {
67		$a = $wheel[$i];
68		$b = $wheel[$i + 1];
69
70		if ($b && $b[1] < $a[1]) {
		0 ignored issues – show Bug Best Practice introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The expression `$b` of type `integer[]` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
71		$b[1] += 360;
72		}
73
74	View Code Duplication	if (!$H_ && $a[0] <= $H && $b[0] > $H) {
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
75		$this->H_RYB[$H] = (($a[1] + ($b[1] - $a[1]) * ($H - $a[0]) / ($b[0] - $a[0])) % 360);
76		$H_ = true;
77		}
78
79	View Code Duplication	if (!$_H && $a[1] <= $H && $b[1] > $H) {
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
80		$this->RYB_H[$H] = (($a[0] + ($b[0] - $a[0]) * ($H - $a[1]) / ($b[1] - $a[1])) % 360);
81		$_H = true;
82		}
83
84		if ($H_ == true && _H == true) {
		0 ignored issues – show Coding Style Best Practice introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing two booleans. Considering using the strict comparison `===` instead. When comparing two booleans, it is generally considered safer to use the strict comparison operator. Loading history...
85		break;
86		}
87		}
88		}
89		$this->White = $this->illuminant('2', 'D65');
90		$this->profile('sRGB');
91		// echo "this->White = ";
92		// print_r($this->White);
93		}
94
95	View Code Duplication	public function RYB_HSV($o)
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
96		{
97		$n = floor($o['H']);
98		$x = $n > 0 ? $o['H'] % $n : 0;
99		$a = $this->RYB_H[$n % 360];
100		$b = $this->RYB_H[ceil($o['H']) % 360];
101
102		return [
103		'H' => $a + ($b - $a) * $x,
104		'S' => $o['S'],
105		'V' => $o['V'],
106		];
107		}
108
109	View Code Duplication	public function HSV_RYB($o)
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
110		{
111		$n = floor($o['H']);
112		$x = $n > 0 ? $o['H'] % $n : 0;
113		$a = $this->H_RYB[$n % 360];
114		$b = $this->H_RYB[ceil($o['H']) % 360];
115
116		return [
117		'H' => $a + ($b - $a) * $x,
118		'S' => $o['S'],
119		'V' => $o['V'],
120		];
121		}
122
123		public function STRING_HEX($o)
124		{
125		return 0 + ('0x'.$o);
126		}
127
128		public function HEX_STRING($o)
129		{
130		$str = sprintf('%X', $o);
131		$n = strlen($str);
132		while ($n < 6) {
133		$str = '0'.$str;
134		$n++;
135		}
136
137		return $str;
138		}
139
140		public function HEX_RGB($o)
141		{
142		return [
143		'R' => ($o >> 16),
144		'G' => ($o >> 8) & 0xFF,
145		'B' => $o & 0xFF,
146		];
147		}
148
149		public function HEX32_RGBA($o)
150		{
151		return [
152		'R' => $o >> 16 & 0xFF,
153		'G' => $o >> 9 & 0xFF,
154		'B' => $o & 0xFF,
155		'A' => $o >> 24,
156		];
157		}
158
159		public function RGBA_HEX32($o)
160		{
161		return ($o['A'] << 24 \| $o['R'] << 16 \| $o['G'] << 8 \| $o['B']) >> 0;
162		}
163
164		public function HEX32_rgbaa($o)
165		{
166		return 'rgba('.($o >> 16 & 0xFF).','.
167		($o >> 8 & 0xFF).','.($o & 0xFF).','.
168		(($o >> 24) / 255).')';
169		}
170
171		/*
172		function RGB_STRING($o)
173		{
174		return $this->HEX_STRING($this->RGB_HEX($o));
175		}
176		function RGB_rgbaa($o)
177		{
178		return 'rgba('. $o['R'] .','.$o['G'].','.$o['B'].','.$o['A'].')';
179		}
180		function HEX_rgba($o)
181		{
182		return $this->HEX32_rgbaa($o);
183		}
184		*/
185		public function RGB_HEX($o)
186		{
187		return $o['R'] << 16 \| $o['G'] << 8 \| $o['B'];
188		}
189
190		public function RGB_CMY($o)
191		{
192		return [
193		'C' => 1 - ($o['R'] / 255),
194		'M' => 1 - ($o['G'] / 255),
195		'Y' => 1 - ($o['B'] / 255),
196		];
197		}
198
199		public function RGB_HSL($o)
200		{
201		$_R = $o['R'] / 255;
202		$_G = $o['G'] / 255;
203		$_B = $o['B'] / 255;
204		$min = min($_R, $_G, $_B);
205		$max = max($_R, $_G, $_B);
206		$D = $max - $min;
207		$L = ($max + $min) / 2;
208
209		if ($D == 0) {
210		$H = 0;
211		$S = 0;
212		} // No Chroma
213
214		else {
215	View Code Duplication	if ($L < 0.5) {
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
216		$S = $D / ($max + $min);
217		} else {
218		$S = $D / (2 - $max - $min);
219		}
220
221		$DR = ((($max - $_R) / 6) + ($D / 2)) / $D;
222		$DG = ((($max - $_G) / 6) + ($D / 2)) / $D;
223		$DB = ((($max - $_B) / 6) + ($D / 2)) / $D;
224
225	View Code Duplication	if ($_R == $max) {
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
226		$H = $DB - $DG;
227		} else {
228		if ($_G == $max) {
229		$H = (1 / 3) + $DR - $DB;
230		} else {
231		if ($_B == $max) {
232		$H = (2 / 3) + $DG - $DR;
233		}
234		}
235		}
236
237		if ($H < 0) {
238		$H += 1;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$H` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
239		}
240		if ($H > 1) {
241		$H -= 1;
242		}
243		}
244
245		return [
246		'H' => $H * 360,
247		'S' => $S * 100,
248		'L' => $L * 100,
249		];
250		}
251
252		public function RGB_HSV($o)
253		{
254		$_R = $o['R'] / 255;
255		$_G = $o['G'] / 255;
256		$_B = $o['B'] / 255;
257
258		$min = min($_R, $_G, $_B);
259		$max = max($_R, $_G, $_B);
260		$D = $max - $min;
261		$V = $max;
262
263		if ($D == 0) {
264		$H = 0;
265		$S = 0;
266		} // No chroma
267
268		else { // Chromatic data
269
270		$S = $D / $max;
271
272		$DR = ((($max - $_R) / 6) + ($D / 2)) / $D;
273		$DG = ((($max - $_G) / 6) + ($D / 2)) / $D;
274		$DB = ((($max - $_B) / 6) + ($D / 2)) / $D;
275
276	View Code Duplication	if ($_R == $max) {
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
277		$H = $DB - $DG;
278		} else {
279		if ($_G == $max) {
280		$H = (1 / 3) + $DR - $DB;
281		} else {
282		if ($_B == $max) {
283		$H = (2 / 3) + $DG - $DR;
284		}
285		}
286		}
287
288		if ($H < 0) {
289		$H += 1;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$H` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
290		}
291		if ($H > 1) {
292		$H -= 1;
293		}
294		}
295
296		return ['H' => $H * 360, 'S' => $S * 100, 'V' => $V * 100];
297		}
298
299		public function RGB_XYZ($o)
300		{
301		$M = $this->_RGB_XYZ;
302		$z = [];
303
304		$R = $o['R'] / 255;
305		$G = $o['G'] / 255;
306		$B = $o['B'] / 255;
307
308		if ($this->_Space == 'sRGB') {
309		$R = ($R > 0.04045) ? pow((($R + 0.055) / 1.055), 2.4) : $R / 12.92;
310		$G = ($G > 0.04045) ? pow((($G + 0.055) / 1.055), 2.4) : $G / 12.92;
311		$B = ($B > 0.04045) ? pow((($B + 0.055) / 1.055), 2.4) : $B / 12.92;
312		} else {
313		$R = pow($R, $this->_Gamma);
314		$G = pow($G, $this->_Gamma);
315		$B = pow($B, $this->_Gamma);
316		}
317
318		$z['X'] = $R * $M[0] + $G * $M[3] + $B * $M[6];
319		$z['Y'] = $R * $M[1] + $G * $M[4] + $B * $M[7];
320		$z['Z'] = $R * $M[2] + $G * $M[5] + $B * $M[8];
321
322		return $z;
323		}
324
325		public function CMY_RGB($o)
326		{
327		return [
328		'R' => max(0, (1 - $o['C']) * 255),
329		'G' => max(0, (1 - $o['M']) * 255),
330		'B' => max(0, (1 - $o['Y']) * 255),
331		];
332		}
333
334		public function CMY_CMYK($o)
335		{
336		$C = $o['C'];
337		$M = $o['M'];
338		$Y = $o['Y'];
339		$K = min($Y, min($M, min($C, 1)));
340
341		$C = round(($C - $K) / (1 - $K) * 100);
342		$M = round(($M - $K) / (1 - $K) * 100);
343		$Y = round(($Y - $K) / (1 - $K) * 100);
344		$K = round($K * 100);
345
346		return ['C' => $C, 'M' => $M, 'Y' => $Y, 'K' => $K];
347		}
348
349		// CMYK = C: Cyan / M: Magenta / Y: Yellow / K: Key (black)
350
351		public function CMYK_CMY($o)
352		{
353		return [
354		'C' => ($o['C'] * (1 - $o['K']) + $o['K']),
355		'M' => ($o['M'] * (1 - $o['K']) + $o['K']),
356		'Y' => ($o['Y'] * (1 - $o['K']) + $o['K']),
357		];
358		}
359
360		// HSL (1978) = H: Hue / S: Saturation / L: Lightess
361
362	View Code Duplication	public function Hue_2_RGB($v1, $v2, $vH)
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
363		{
364		if ($vH < 0) {
365		$vH += 1;
366		}
367		if ($vH > 1) {
368		$vH -= 1;
369		}
370		if ((6 * $vH) < 1) {
371		return $v1 + ($v2 - $v1) * 6 * $vH;
372		}
373		if ((2 * $vH) < 1) {
374		return $v2;
375		}
376		if ((3 * $vH) < 2) {
377		return $v1 + ($v2 - $v1) * ((2 / 3) - $vH) * 6;
378		}
379
380		return $v1;
381		}
382
383		public function HSL_RGB($o)
384		{
385		$H = $o['H'] / 360;
386		$S = $o['S'] / 100;
387		$L = $o['L'] / 100;
388		$R;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$R` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
389		$G;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$G` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
390		$B;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$B` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
391		$_1;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$_1` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
392		$_2;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$_2` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
393
394		if ($S == 0) { // HSL from 0 to 1
395
396		$R = $L * 255;
397		$G = $L * 255;
398		$B = $L * 255;
399		} else {
400		if ($L < 0.5) {
401		$_2 = $L * (1 + $S);
402		} else {
403		$_2 = ($L + $S) - ($S * $L);
404		}
405
406		$_1 = 2 * $L - $_2;
407
408		$R = 255 * $this->Hue_2_RGB($_1, $_2, $H + (1 / 3));
409		$G = 255 * $this->Hue_2_RGB($_1, $_2, $H);
410		$B = 255 * $this->Hue_2_RGB($_1, $_2, $H - (1 / 3));
411		}
412
413		return ['R' => $R, 'G' => $G, 'B' => $B];
414		}
415
416		// HSV (1978) = H: Hue / S: Saturation / V: Value
417
418		public function HSV_RGB($o)
419		{
420		$H = $o['H'] / 360;
421		$S = $o['S'] / 100;
422		$V = $o['V'] / 100;
423		$R;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$R` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
424		$G;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$G` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
425		$B;
		0 ignored issues – show Bug introduced 2016-09-18 20:01 UTC by Report Bug Copy Issue Report The variable `$B` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
426
427		if ($S == 0) {
428		$R = $G = $B = round($V * 255);
429		} else {
430		if ($H >= 1) {
431		$H = 0;
432		}
433
434		$H = 6 * $H;
435		$D = $H - floor($H);
436		$A = round(255 * $V * (1 - $S));
437		$B = round(255 * $V * (1 - ($S * $D)));
438		$C = round(255 * $V * (1 - ($S * (1 - $D))));
439		$V = round(255 * $V);
440
441		switch (floor($H)) {
442
443		case 0:
444		$R = $V;
445		$G = $C;
446		$B = $A;
447		break;
448		case 1:
449		$R = $B;
450		$G = $V;
451		$B = $A;
452		break;
453		case 2:
454		$R = $A;
455		$G = $V;
456		$B = $C;
457		break;
458		case 3:
459		$R = $A;
460		$G = $B;
461		$B = $V;
462		break;
463		case 4:
464		$R = $C;
465		$G = $A;
466		$B = $V;
467		break;
468		case 5:
469		$R = $V;
470		$G = $A;
471		$B = $B;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report Why assign `$B` to itself? This checks looks for cases where a variable has been assigned to itself. This assignement can be removed without consequences. Loading history...
472		break;
473		}
474		}
475
476		return ['R' => $R, 'G' => $G, 'B' => $B];
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$R` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history... Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$G` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
477		}
478
479		// CIE (Commission International de L’Eclairage)
480
481		// CIE-XYZ (1931) = Y: Luminescence / XZ: Spectral Weighting Curves (Spectral Locus)
482
483		public function XYZ_RGB($o)
484		{
485		$M = $this->_XYZ_RGB;
486		$z = [];
487
488		$z['R'] = $o['X'] * $M[0] + $o['Y'] * $M[3] + $o['Z'] * $M[6];
489		$z['G'] = $o['X'] * $M[1] + $o['Y'] * $M[4] + $o['Z'] * $M[7];
490		$z['B'] = $o['X'] * $M[2] + $o['Y'] * $M[5] + $o['Z'] * $M[8];
491
492		if ($this->_Space == 'sRGB') {
493		$z['R'] = ($z['R'] > 0.0031308) ? (1.055 * pow($z['R'], 1 / 2.4)) - 0.055 : 12.92 * $z['R'];
494		$z['G'] = ($z['G'] > 0.0031308) ? (1.055 * pow($z['G'], 1 / 2.4)) - 0.055 : 12.92 * $z['G'];
495		$z['B'] = ($z['B'] > 0.0031308) ? (1.055 * pow($z['B'], 1 / 2.4)) - 0.055 : 12.92 * $z['B'];
496		} else {
497		$z['R'] = pow($z['R'], 1 / $this->_Gamma);
498		$z['G'] = pow($z['G'], 1 / $this->_Gamma);
499		$z['B'] = pow($z['B'], 1 / $this->_Gamma);
500		}
501
502		return ['R' => round($z['R'] * 255), 'G' => round($z['G'] * 255), 'B' => round($z['B'] * 255)];
503		}
504
505		public function XYZ_xyY($o)
506		{
507		$n = $o['X'] + $o['Y'] + $o['Z'];
508
509		if ($n == 0) {
510		return ['x' => 0, 'y' => 0, 'Y' => $o['Y']];
511		}
512
513		return ['x' => $o['X'] / $n, 'y' => $o['Y'] / $n, 'Y' => $o['Y']];
514		}
515
516		public function XYZ_HLab($o)
517		{
518		$n = sqrt($o['Y']);
519
520		return [
521		'L' => 10 * $n,
522		'a' => 17.5 * (((1.02 * $o['X']) - $o['Y']) / $n),
523		'b' => 7 * (($o['Y'] - (0.847 * $o['Z'])) / $n),
524		];
525		}
526
527		public function XYZ_Lab($o)
528		{
529		$r = $this->White;
530
531		function fu($n)
		0 ignored issues – show Best Practice introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
532		{
533		if ($n > 0.008856) {
534		return pow($n, 1 / 3);
535		} else {
536		return (7.787 * $n) + (16 / 116);
537		}
538		}
539
540		$X = fu($o['X'] / $r['X']);
541		$Y = fu($o['Y'] / $r['Y']);
542		$Z = fu($o['Z'] / $r['Z']);
543
544		return ['L' => (116 * $Y) - 16, 'a' => 500 * ($X - $Y), 'b' => 200 * ($Y - $Z)];
545		}
546
547		public function XYZ_Luv($o)
548		{
549		$r = $this->White;
550
551		$U = (4 * $o['X']) / ($o['X'] + (15 * $o['Y']) + (3 * $o['Z']));
552		$V = (9 * $o['Y']) / ($o['X'] + (15 * $o['Y']) + (3 * $o['Z']));
553
554		if ($o['Y'] > 0.008856) {
555		$o['Y'] = pow($o['Y'], 1 / 3);
556		} else {
557		$o['Y'] = (7.787 * $o['Y']) + (16 / 116);
558		}
559
560		$_L = (116 * $o['Y']) - 16;
561		$_U = (4 * $r['X']) / ($r['X'] + (15 * $r['Y']) + (3 * $r['Z']));
562		$_V = (9 * $r['Y']) / ($r['X'] + (15 * $r['Y']) + (3 * $r['Z']));
563
564		return ['L' => $_L, 'u' => 13 * $_L * ($U - $_U), 'v' => 13 * $_L * ($V - $_V)];
565		}
566
567		// CIE-xyY (1931) = Y: Luminescence / xy: Chromaticity Co-ordinates (Spectral Locus)
568
569		public function xyY_XYZ($o)
570		{
571		return [
572		'X' => ($o['x'] * $o['Y']) / $o['y'],
573		'Y' => $o['Y'],
574		'Z' => ((1 - $o['x'] - $o['y']) * $o['Y']) / $o['y'],
575		];
576		}
577
578		// Hunter-L*ab (1948) = L: Lightness / ab: Color-opponent Dimensions
579
580		public function HLab_XYZ($o)
581		{
582		$_Y = $o['L'] / 10;
583		$_X = ($o['a'] / 17.5) * ($o['L'] / 10);
584		$_Z = ($o['b'] / 7) * ($o['L'] / 10);
585
586		$Y = pow($_Y, 2);
587		$X = ($_X + $Y) / 1.02;
588		$Z = -1 * ($_Z - $Y) / 0.847;
589
590		return ['X' => $X, 'Y' => $Y, 'Z' => $Z];
591		}
592
593		// CIE-L*ab (1976) = L: Luminescence / a: Red / Green / b: Blue / Yellow
594
595		public function Lab_XYZ($o)
596		{
597		$r = $this->White;
598
599		$Y = ($o['L'] + 16) / 116;
600		$X = $o['a'] / 500 + $Y;
601		$Z = $Y - $o['b'] / 200;
602
603		$Y = pow($Y, 3) > 0.008856 ? pow($Y, 3) : ($Y - 16 / 116) / 7.787;
604		$X = pow($X, 3) > 0.008856 ? pow($X, 3) : ($X - 16 / 116) / 7.787;
605		$Z = pow($Z, 3) > 0.008856 ? pow($Z, 3) : ($Z - 16 / 116) / 7.787;
606
607		return ['X' => $r['X'] * $X, 'Y' => $r['Y'] * $Y, $Z => $r['Z'] * $Z];
608		}
609
610	View Code Duplication	public function Lab_LCHab($o)
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
611		{
612		$H = atan2($o['b'], $o['a']) * (180 / PI);
613
614		if ($H < 0) {
615		$H += 360;
616		} else {
617		if ($H > 360) {
618		$H -= 360;
619		}
620		}
621
622		return ['L' => $o['L'], 'C' => sqrt($o['a'] * $o['a'] + $o['b'] * $o['b']), 'H' => $H];
623		}
624
625		// CIE-L*uv (1976) = L: Luminescence / u: Saturation / v: Hue
626
627		public function Luv_XYZ($o)
628		{
629		$r = $White;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$White` does not exist. Did you forget to declare it? This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug. Loading history...
630
631		$Y = ($o['L'] + 16) / 116;
632		$Y = (pow($Y, 3) > 0.008856) ? pow($Y, 3) : (($Y - 16 / 116) / 7.787);
633
634		$_U = (4 * $r['X']) / ($r['X'] + (15 * $r['Y']) + (3 * $r['Z']));
635		$_V = (9 * $r['Y']) / ($r['X'] + (15 * $r['Y']) + (3 * $r['Z']));
636
637		$U = $o['u'] / (13 * $o['L']) + $_U;
638		$V = $o['v'] / (13 * $o['L']) + $_V;
639
640		$X = -(9 * $Y * $U) / (($U - 4) * $V - $U * $V);
641		$Z = (9 * $Y - (15 * $V * $Y) - ($V * $X)) / (3 * $V);
642
643		return ['X' => $X, 'Y' => $Y, 'Z' => $Z];
644		}
645
646	View Code Duplication	public function Luv_LCHuv($o)
		0 ignored issues – show Duplication introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
647		{
648		$H = atan2($o['v'], $o['u']) * (180 / PI);
649
650		if ($H < 0) {
651		$H += 360;
652		} else {
653		if ($H > 360) {
654		$H -= 360;
655		}
656		}
657
658		return ['L' => $o['L'], 'C' => sqrt($o['u'] * $o['u'] + $o['v'] * $o['v']), 'H' => $H];
659		}
660
661		// CIE-L*CH (1986) = L: Luminescece / C: Chromacity / H: Hue
662
663		public function LCHab_Lab($o)
664		{
665		$rad = $o['H'] * (PI / 180);
666
667		return ['L' => $o['L'], 'a' => cos($rad) * $o['C'], 'b' => sin($rad) * $o['C']];
668		}
669
670		public function LCHuv_Luv($o)
671		{
672		$rad = $o['H'] * (PI / 180);
673
674		return ['L' => $o['L'], 'u' => cos($rad) * $o['C'], 'v' => sin($rad) * $o['C']];
675		}
676
677		public function adapt($o, $type)
678		{
679		$r = [ // Adaption methods
680		'XYZ scaling' => [
681		'A' => [[1, 0, 0], [0, 1, 0], [0, 0, 1]],
682		'Z' => [[1, 0, 0], [0, 1, 0], [0, 0, 1]],
683		],
684		'Von Kries' => [
685		'A' => [[0.400240, -0.226300, 0], [0.707600, 1.165320, 0], [-0.080810, 0.045700, 0.918220]],
686		'Z' => [[1.859936, 0.361191, 0], [-1.129382, 0.638812, 0], [0.219897, -0.000006, 1.089064]],
687		],
688		'Bradford' => [
689		'A' => [
690		[0.895100, 0.26640000, -0.16139900],
691		[-0.75019900, 1.71350, 0.0367000],
692		[0.03889900, -0.0685000, 1.02960000],
693		],
694		'Z' => [
695		[0.986993, -0.14705399, 0.15996299],
696		[0.43230499, 0.51836, 0.0492912],
697		[-0.00852866, 0.0400428, 0.96848699],
698		],
699		],
700		];
701
702		$WS = $this->_xyY;
703		$WD = $this->White; // White Point Source + Destination
704		// echo 'WS = ';
705		// print_r($WS);
706		// echo 'WD = ';
707		// print_r($WD);
708
709		$A = $r[$type]['A'];
710		$Z = $r[$type]['Z']; // Load Matrices
711
712		$CRD = $this->multiply($A, [[$WD['X']], [$WD['Y']], [$WD['Z']]]); // Convert to cone responce domain
713		$CRS = $this->multiply($A, [[$WS['X']], [$WS['Y']], [$WS['Z']]]);
714		//print_r($CRD);
715		//print_r($CRS);
716
717		$M = [
718		[$CRD[0][0] / $CRS[0][0], 0, 0],
719		[0, $CRD[1][0] / $CRS[1][0], 0],
720		[0, 0, $CRD[2][0] / $CRS[2][0]],
721		]; // Scale Vectors
722
723		$z = $this->multiply($Z,
724		$this->multiply($M, $this->multiply($A, [[$o['X']], [$o['Y']], [$o['Z']]]))); // Back to XYZ
725
726		return ['X' => $z[0][0], 'Y' => $z[1][0], 'Z' => $z[2][0]];
727		}
728
729		public function f($o)
730		{
731		$x = $this->xyY_XYZ($o);
732		// echo 'o = ';
733		// print_r($o);
734		// echo 'x = ';
735		// print_r($x);
736		return $this->adapt($x, 'Bradford');
737		}
738
739		public function illuminant($observer, $type)
740		{
741		$o = $this->_illuminant[$type];
742
743		$o = ($observer == 2) ? ['x' => $o[0], 'y' => $o[1], 'Y' => 1] : ['x' => $o[2], 'y' => $o[3], 'Y' => 1];
744
745		//print_r($o);
746
747		return $this->xyY_XYZ($o);
748		}
749
750		private $_Space;
751		private $_Gamma;
752		private $_White;
753		private $_Matrix;
754
755		public function profile($i)
756		{
757		$m = $this->_profile[$i];
758		//print_r($m);
759
760		$this->_Space = $i;
761		$this->_Gamma = $m[0];
762		$this->_White = $m[1];
763		$this->_Matrix = $m;
764
765		// Input Illuminant
766
767		$this->_xyY = $this->illuminant('2', $m[1]);
768		//print_r($this->_xyY);
769
770		$R = $this->f(['x' => $m[2], 'y' => $m[3], 'Y' => $m[4]]);
771		$G = $this->f(['x' => $m[5], 'y' => $m[6], 'Y' => $m[7]]);
772		$B = $this->f(['x' => $m[8], 'y' => $m[9], 'Y' => $m[10]]);
773		// print_r($R);
774		// print_r($G);
775		// print_r($B);
776
777		$this->_RGB_XYZ = [$R['X'], $R['Y'], $R['Z'], $G['X'], $G['Y'], $G['Z'], $B['X'], $B['Y'], $B['Z']];
778		// print_r($this->_RGB_XYZ);
779
780		$this->_XYZ_RGB = $this->inverse($this->_RGB_XYZ);
781		}
782
783		private $_RGB_XYZ;
784
785		private $_profile = [ // [ Gamma, Illuminant, Matrix ]
786		'Adobe (1998)' => [2.2, 'D65', 0.64, 0.33, 0.297361, 0.21, 0.71, 0.627355, 0.15, 0.06, 0.075285],
787		// Adobe
788		'Apple RGB' => [1.8, 'D65', 0.625, 0.34, 0.244634, 0.28, 0.595, 0.672034, 0.155, 0.07, 0.083332],
789		// Apple, a.k.a. SGI
790		'BestRGB' => [2.2, 'D50', 0.7347, 0.2653, 0.228457, 0.215, 0.775, 0.737352, 0.13, 0.035, 0.034191],
791		// Don Hutcheson
792		'Beta RGB' => [2.2, 'D50', 0.6888, 0.3112, 0.303273, 0.1986, 0.7551, 0.663786, 0.1265, 0.0352, 0.032941],
793		// Bruce Lindbloom
794		'Bruce RGB' => [2.2, 'D65', 0.64, 0.33, 0.240995, 0.28, 0.65, 0.683554, 0.15, 0.06, 0.075452],
795		// Bruce Fraser
796		'CIE RGB' => [2.2, 'E', 0.735, 0.265, 0.176204, 0.274, 0.717, 0.812985, 0.167, 0.009, 0.010811],
797		// CIE
798		'ColorMatch' => [1.8, 'D50', 0.63, 0.34, 0.274884, 0.295, 0.605, 0.658132, 0.15, 0.075, 0.066985],
799		// Radius
800		'DonRGB4' => [2.2, 'D50', 0.696, 0.3, 0.27835, 0.215, 0.765, 0.68797, 0.13, 0.035, 0.03368],
801		'eciRGB' => [1.8, 'D50', 0.67, 0.33, 0.32025, 0.21, 0.71, 0.602071, 0.14, 0.08, 0.077679],
802		// European Colour Initiative
803		'Ekta Space PS5' => [2.2, 'D50', 0.695, 0.305, 0.260629, 0.26, 0.7, 0.734946, 0.11, 0.005, 0.004425],
804		// Joseph Holmes
805		'Generic RGB' => [1.8, 'D65', 0.6295, 0.3407, 0.232546, 0.2949, 0.6055, 0.672501, 0.1551, 0.0762, 0.094952],
806		'HDTV (HD-CIF)' => [1.95, 'D65', 0.64, 0.33, 0.212673, 0.3, 0.6, 0.715152, 0.15, 0.06, 0.072175],
807		// a.k.a. ITU-R BT.701
808		'NTSC' => [2.2, 'C', 0.67, 0.33, 0.298839, 0.21, 0.71, 0.586811, 0.14, 0.08, 0.11435],
809		// National Television System Committee (NTSC), a.k.a. Y'I'Q'
810		'PAL / SECAM' => [2.2, 'D65', 0.64, 0.33, 0.222021, 0.29, 0.6, 0.706645, 0.15, 0.06, 0.071334],
811		// European Broadcasting Union (EBU), a.k.a. Y'U'V'
812		'ProPhoto' => [1.8, 'D50', 0.7347, 0.2653, 0.28804, 0.1596, 0.8404, 0.711874, 0.0366, 0.0001, 0.000086],
813		// Kodak, a.k.a. ROMM RGB
814		'SGI' => [1.47, 'D65', 0.625, 0.34, 0.244651, 0.28, 0.595, 0.672030, 0.155, 0.07, 0.083319],
815		'SMPTE-240M' => [1.92, 'D65', 0.63, 0.34, 0.212413, 0.31, 0.595, 0.701044, 0.155, 0.07, 0.086543],
816		'SMPTE-C' => [2.2, 'D65', 0.63, 0.34, 0.212395, 0.31, 0.595, 0.701049, 0.155, 0.07, 0.086556],
817		// Society of Motion Picture and Television Engineers (SMPTE)
818		'sRGB' => [2.2, 'D65', 0.64, 0.33, 0.212656, 0.3, 0.6, 0.715158, 0.15, 0.06, 0.072186],
819		// Microsoft & Hewlett - Packard
820		'Wide Gamut' => [2.2, 'D50', 0.7347, 0.2653, 0.258187, 0.1152, 0.8264, 0.724938, 0.1566, 0.0177, 0.016875],
821		// Adobe
822		];
823
824		private $_illuminant = [ // [ x2°, y2°, x10°, y10°, CCT (Kelvin) ]
825
826		'A' => [0.44757, 0.40745, 0.45117, 0.40594, 2856], // Incandescent tungsten
827		'B' => [0.34842, 0.35161, 0.3498, 0.3527, 4874], // Obsolete, direct sunlight at noon
828		'C' => [0.31006, 0.31616, 0.31039, 0.31905, 6774], // Obsolete, north sky daylight
829		'D50' => [0.34567, 0.35850, 0.34773, 0.35952, 5003], // ICC Profile PCS. Horizon light.
830		'D55' => [0.33242, 0.34743, 0.33411, 0.34877, 5503], // Compromise between incandescent and daylight
831		'D65' => [0.31271, 0.32902, 0.31382, 0.33100, 6504], // Daylight, sRGB color space
832		'D75' => [0.29902, 0.31485, 0.29968, 0.31740, 7504], // North sky day light
833		'E' => [0.33333, 0.33333, 0.33333, 0.33333, 5454], // Equal energy
834		'F1' => [0.31310, 0.33727, 0.31811, 0.33559, 6430], // Daylight Fluorescent
835		'F2' => [0.37208, 0.37529, 0.37925, 0.36733, 4230], // Cool White Fluorescent
836		'F3' => [0.40910, 0.39430, 0.41761, 0.38324, 3450], // White Fluorescent
837		'F4' => [0.44018, 0.40329, 0.44920, 0.39074, 2940], // Warm White Fluorescent
838		'F5' => [0.31379, 0.34531, 0.31975, 0.34246, 6350], // Daylight Fluorescent
839		'F6' => [0.37790, 0.38835, 0.38660, 0.37847, 4150], // Lite White Fluorescent
840		'F7' => [0.31292, 0.32933, 0.31569, 0.32960, 6500], // D65 simulator, day light simulator
841		'F8' => [0.34588, 0.35875, 0.34902, 0.35939, 5000], // D50 simulator, Sylvania F40 Design
842		'F9' => [0.37417, 0.37281, 0.37829, 0.37045, 4150], // Cool White Deluxe Fluorescent
843		'F10' => [0.34609, 0.35986, 0.35090, 0.35444, 5000], // Philips TL85, Ultralume 50
844		'F11' => [0.38052, 0.37713, 0.38541, 0.37123, 4000], // Philips TL84, Ultralume 40
845		'F12' => [0.43695, 0.40441, 0.44256, 0.39717, 3000],
846		]; // Philips TL83, Ultralume 30
847
848		public function multiply($m1, $m2)
849		{
850		$ni = count($m1);
851		$ki = $ni;
852		$i;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$i` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
853		$nj;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$nj` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
854		$kj = count($m2[0]);
855		$j;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$j` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
856		$cols = count($m1[0]);
857		$M = [];
858		$sum;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$sum` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
859		$nc;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$nc` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
860		$c;
		0 ignored issues – show Bug introduced 2015-12-10 15:15 UTC by Report Bug Copy Issue Report The variable `$c` seems only to be defined at a later point. Did you maybe move this code here without moving the variable definition? This error can happen if you refactor code and forget to move the variable initialization. Let’s take a look at a simple example: function someFunction() { $x = 5; echo $x; } The above code is perfectly fine. Now imagine that we re-order the statements: function someFunction() { echo $x; $x = 5; } In that case, `$x` would be read before it is initialized. This was a very basic example, however the principle is the same for the found issue. Loading history...
861		do {
862		$i = $ki - $ni;
863		$M[$i] = [];
864		$nj = $kj;
865		do {
866		$j = $kj - $nj;
867		$sum = 0;
868		$nc = $cols;
869		do {
870		$c = $cols - $nc;
871		$sum += $m1[$i][$c] * $m2[$c][$j];
872		} while (($nc -= 1));
873		$M[$i][$j] = $sum;
874		} while (($nj -= 1));
875		} while (($ni -= 1));
876
877		return $M;
878		}
879
880		public function determinant($m)
881		{ // 3x3
882
883		// print_r($m);
884		return $m[0] * ($m[4] * $m[8] - $m[5] * $m[7]) -
885		$m[1] * ($m[3] * $m[8] - $m[5] * $m[6]) +
886		$m[2] * ($m[3] * $m[7] - $m[4] * $m[6]);
887		}
888
889		public function inverse($m)
890		{ // 3x3
891
892		$d = 1.0 / $this->determinant($m);
893
894		return [
895		$d * ($m[4] * $m[8] - $m[5] * $m[7]),
896		$d * (-1 * ($m[1] * $m[8] - $m[2] * $m[7])),
897		$d * ($m[1] * $m[5] - $m[2] * $m[4]),
898		$d * (-1 * ($m[3] * $m[8] - $m[5] * $m[6])),
899		$d * ($m[0] * $m[8] - $m[2] * $m[6]),
900		$d * (-1 * ($m[0] * $m[5] - $m[2] * $m[3])),
901		$d * ($m[3] * $m[7] - $m[4] * $m[6]),
902		$d * (-1 * ($m[0] * $m[7] - $m[1] * $m[6])),
903		$d * ($m[0] * $m[4] - $m[1] * $m[3]),
904		];
905		}
906		}
907

nabble / ajde

Push — master ( 470825...143e87 )

ColorSpace.php ➔ fu() A

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Duplication

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Available Fixes

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