diff options
Diffstat (limited to 'bin/gaussian_blur.py')
-rw-r--r-- | bin/gaussian_blur.py | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/bin/gaussian_blur.py b/bin/gaussian_blur.py new file mode 100644 index 0000000..d530547 --- /dev/null +++ b/bin/gaussian_blur.py @@ -0,0 +1,44 @@ +# Copyright 2016 (c) Egor Tensin <Egor.Tensin@gmail.com> +# This file is part of the "Simple image filters" project. +# For details, see https://github.com/egor-tensin/filters. +# Distributed under the MIT License. + +import argparse +import sys + +from .utils import cmd_line, image +from filters.convolution import convolve +from filters.kernel.gaussian_blur import gen_kernel + +DEFAULT_SIGMA = 1. +DEFAULT_RADIUS = 1 + +def _main_gaussian_blur( + img_path, radius=DEFAULT_RADIUS, sigma=DEFAULT_SIGMA, + output_path=None): + + img = image.load_grayscale(img_path) + kernel = gen_kernel(radius, sigma) + output = convolve(img, kernel) + if output_path is None: + image.show(output) + else: + image.save(output_path, output) + +def _parse_args(args=sys.argv): + parser = argparse.ArgumentParser() + parser.add_argument('img_path') + parser.add_argument('--output', '-o', + dest='output_path', default=None) + parser.add_argument('--sigma', '-s', + type=float, default=DEFAULT_SIGMA) + parser.add_argument('--radius', '-r', + type=cmd_line.parse_non_negative_integer, + default=DEFAULT_RADIUS) + return parser.parse_args(args[1:]) + +def _main(args=sys.argv): + _main_gaussian_blur(**vars(_parse_args(args))) + +if __name__ == '__main__': + _main() |