71 lines
2.5 KiB
Python
Executable File
71 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python3
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from argparse import ArgumentParser
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from os import remove
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from sys import exit
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from signal import signal, SIGINT
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from multiprocessing import Pool, cpu_count
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from imgrate import imgrate
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class Cli:
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def __init__(self):
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self.args = None
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self.image_ratings = None
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self.best_image = None
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def __call__(self):
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self.parse_arguments()
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if not hasattr(imgrate, self.args.method):
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exit('Invalid --method option!')
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self.calculate_ratings()
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self.best_image = max(self.image_ratings, key=self.image_ratings.get)
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self.print_ratings()
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if self.args.delete:
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self.keep_best_quality_image_only()
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def parse_arguments(self):
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ap = ArgumentParser(description='Find the best quality one among similar images.'
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'Note: image dimensions should match!')
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ap.add_argument('images', type=str, nargs='+',
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help='')
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ap.add_argument('-d', '--delete', action='store_true',
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help='Delete all but the best quality image.')
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ap.add_argument('-q', '--quiet', action='store_true',
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help='Print quality measurements only.')
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ap.add_argument('-m', '--method', type=str, default='quality',
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help='Select quality measurement to use.')
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self.args = ap.parse_args()
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def calculate_ratings(self):
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with Pool(processes=cpu_count()) as pool:
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ratings = [(image, pool.apply_async(self.rate_image,
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(image, self.args.method)))
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for image in self.args.images]
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self.image_ratings = {image: promise.get() for image, promise in ratings}
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@staticmethod
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def rate_image(image, method):
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return getattr(imgrate(image), method)
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def print_ratings(self):
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for image in self.image_ratings.keys():
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if self.args.quiet:
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print(self.image_ratings[image])
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else:
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max_marker = '*' if image == self.best_image and len(self.image_ratings) > 1 else ' '
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print(f'{max_marker}imgrate("{image}") = {self.image_ratings[image]}')
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def keep_best_quality_image_only(self):
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for image in self.image_ratings.keys():
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if image != self.best_image:
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remove(image)
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if __name__ == '__main__':
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signal(SIGINT, lambda a, b: exit('\nExiting!'))
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Cli()()
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