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EuclideanDistance::__invoke()   A
last analyzed

↳ Parent: EuclideanDistance

Complexity

Conditions 1
Paths 1

Size

Total Lines 13
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 8
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 13
ccs 8
cts 8
cp 1
rs 9.4285
cc 1
eloc 8
nc 1
nop 2
crap 1
1 
<?php
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namespace Undemanding\Difference\Method;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class EuclideanDistance

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * RGB color distance for the same pixel in two images.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @link https://en.wikipedia.org/wiki/Euclidean_distance

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param array $p

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param array $q

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return float

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    public function __invoke(array $p, array $q)

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        $r = $p["r"] - $q["r"];

            


            
                                                        
            
                                    
            
            

                
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        $r *= $r;

            


            
                                                        
            
                                    
            
            

                
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        $g = $p["g"] - $q["g"];

            


            
                                                        
            
                                    
            
            

                
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        $g *= $g;

            


            
                                                        
            
                                    
            
            

                
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        $b = $p["b"] - $q["b"];

            


            
                                                        
            
                                    
            
            

                
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        $b *= $b;

            


            
                                                        
            
                                    
            
            

                
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        return (float) sqrt($r + $g + $b);

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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