view cropresize/ @ 0:0a54e5bd2875

initial import of cropresive from
author k0s <>
date Thu, 29 Oct 2009 18:28:13 -0400
children 6ec33e2ce60f
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#!/usr/bin/env python

import sys
from PIL import Image

def crop_resize(image, size, exact_size=False):
    Crop out the proportional middle of the image and set to the desired size.
    If the image is bigger than the sizes passed, this works as expected.
    If the image is smaller than the sizes passed, then behavior is dictated
    by the `exact_size` flag.  If the 

    assert size[0] or size[1]

    size = list(size)

    image_ar = image.size[0]/float(image.size[1])
    crop = size[0] and size[1]
    if not size[1]:
        size[1] = int(image.size[1]*size[0]/float(image.size[0]) )
    if not size[0]:
        size[0] = int(image.size[0]*size[1]/float(image.size[1]) )
    size_ar = size[0]/float(size[1])

    if size[0] > image.size[0]:
        if size[1] > image.size[1]:
            if not exact_size:
                return image
            # raise NotImplementedError
    elif size[1] > image.size[1]:
    if crop:
        if image_ar > size_ar:
            # trim the width
            xoffset = int(0.5*(image.size[0] - size_ar*image.size[1]))
            image = image.crop((xoffset, 0, image.size[0]-xoffset, image.size[1]))
        elif image_ar < size_ar:
            # trim the height
            yoffset = int(0.5*(image.size[1] - image.size[0]/size_ar))
            image = image.crop((0, yoffset, image.size[0], image.size[1] - yoffset))

    return image.resize(size, Image.ANTIALIAS)

def main():
    from optparse import OptionParser
    parser = OptionParser()
    parser.add_option('-W', '--width')
    parser.add_option('-H', '--height')
    parser.add_option('-e', '--exact-size', dest='exact', action='store_true', default=False)
    (options, args) = parser.parse_args()

    if not args:

    width = int(options.width)
    height = int(options.height)

    for arg in args:
        image =
        new_image = crop_resize(image, (width, height), options.exact)

if __name__ == '__main__':