UpscaleFilter.apply() - Code Metrics - Inspection of "Merge pull request #14 from FlaskGuys/UpscaleFilte..." - FlaskGuys/Flask-Imagine - Measure and Improve Code Quality continuously with Scrutinizer

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by Dmitry

created 2016-04-12 23:13 UTC

UpscaleFilter.apply() B

↳ Parent: UpscaleFilter

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Metric	Value
cc	5
dl	0
loc	24
rs	8.1671

"""
This module implement a Upscale filter.
"""
from .interface import ImagineFilterInterface
from PIL import Image


class UpscaleFilter(ImagineFilterInterface):
    """
    Upscale filter
    """
    size = None

    def __init__(self, **kwargs):
        """
        :param kwargs: dict
        """
        if 'min' in kwargs and isinstance(kwargs['min'], list) and len(kwargs['min']) == 2:
            self.size = kwargs.get('min')
        else:
            raise ValueError('Unsupported configuration')

    def apply(self, resource):
        """
        Apply filter to resource.
        :param resource: Image
        :return: Image
        """
        if not isinstance(resource, Image.Image):
            raise ValueError('Unsupported resource format: %s' % str(type(resource)))

        original_width, original_height = resource.size

        if original_width < self.size[0] and original_height < self.size[1]:
            k = original_width / float(original_height)

            if original_width >= original_height:
                target_width = self.size[0]
                target_height = int(target_width / k)
            else:
                target_height = self.size[1]
                target_width = int(target_height * k)

            resource = resource.resize((target_width, target_height), Image.ANTIALIAS)

        return resource


1			"""
2			This module implement a Upscale filter.
3			"""
4			from .interface import ImagineFilterInterface
5			from PIL import Image
6
7
8			class UpscaleFilter(ImagineFilterInterface):
9			"""
10			Upscale filter
11			"""
12			size = None
13
14			def __init__(self, **kwargs):
15			"""
16			:param kwargs: dict
17			"""
18			if 'min' in kwargs and isinstance(kwargs['min'], list) and len(kwargs['min']) == 2:
19			self.size = kwargs.get('min')
20			else:
21			raise ValueError('Unsupported configuration')
22
23			def apply(self, resource):
24			"""
25			Apply filter to resource.
26			:param resource: Image
27			:return: Image
28			"""
29			if not isinstance(resource, Image.Image):
30			raise ValueError('Unsupported resource format: %s' % str(type(resource)))
31
32			original_width, original_height = resource.size
33
34			if original_width < self.size[0] and original_height < self.size[1]:
35			k = original_width / float(original_height)
36
37			if original_width >= original_height:
38			target_width = self.size[0]
39			target_height = int(target_width / k)
40			else:
41			target_height = self.size[1]
42			target_width = int(target_height * k)
43
44			resource = resource.resize((target_width, target_height), Image.ANTIALIAS)
45
46			return resource
47

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UpscaleFilter.apply() B

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