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path: root/app/media/utils.py
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import os
import subprocess

from PIL import ImageFile
# pip install python-resize-image
from resizeimage import resizeimage


def resize_image(img, width=None, height=None, quality=72, filepath=""):
    """
    given an image object, size, and filepath
    resize the image, then save it , size, and filepath
    resize the image, then save it at the filepath
    """
    base_path = os.path.dirname(filepath)
    if not os.path.isdir(base_path):
        os.makedirs(base_path)
    if width and height:
        newimg = resizeimage.resize_cover(img, [width, height])
    if width and not height:
        newimg = resizeimage.resize_width(img, width)
    if height and not width:
        newimg = resizeimage.resize_height(img, height)
    ImageFile.MAXBLOCK = img.size[0] * img.size[1] * 4
    newimg.save(filepath, newimg.format, quality=quality)
    subprocess.call(["jpegoptim", "%s" % filepath])