Files
scripts/CompressResizeImages.py
2022-01-27 11:42:52 +01:00

149 lines
4.8 KiB
Python
Executable File

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import os
import getopt
from PIL import Image
from pixelate import pixelate
from resizeimage import resizeimage
def compressor(file, final_path, quality, resize, size):
# get filepath of image
filepath = os.path.join(os.getcwd(), file)
# open image
with Image.open(filepath) as image:
# resize and compress landscape images
if resize and image.width >= size and image.width >= image.height:
# resize
print('resizing: ' + file)
cover = resizeimage.resize_width(image, size)
# convert to 8 bit (if possible)
print('converting to 8 bit: ' + file)
if cover.format in ['JPG', 'JPEG']:
# TODO: JPG + JPEG are not converted to 8 bit
cover = cover.quantize(colors=256, method=2).convert("RGB")
else:
cover = cover.quantize(colors=256, method=2)
# compress and save
print('compressing: ' + file)
cover.save(
str(final_path) + '/' + 'min-' + file,
image.format,
optimize=True,
quality=quality,
)
# resize and compress portrait images
elif resize and image.height >= size and image.height >= image.width:
# resize
print('resizing: ' + file)
cover = resizeimage.resize_height(image, size)
# convert to 8 bit (if possible)
print('converting to 8 bit: ' + file)
if cover.format in ['JPG', 'JPEG']:
# TODO: JPG + JPEG are not converted to 8 bit
cover = cover.quantize(colors=256, method=2).convert("RGB")
else:
cover = cover.quantize(colors=256, method=2)
# compress and save
print('compressing: ' + file)
cover.save(
str(final_path) + '/' + 'min-' + file,
image.format,
optimize=True,
quality=quality,
)
# compress images
else:
# convert to 8 bit (if possible)
print('converting to 8 bit: ' + file)
if image.format in ['JPG', 'JPEG']:
# TODO: JPG + JPEG are not converted to 8 bit
image = image.quantize(colors=256, method=2).convert("RGB")
else:
image = image.quantize(colors=256, method=2)
# compress and save
print('compress: ' + file)
image.save(
str(final_path) + "/" + "min-" + file,
image.format,
optimize=True,
quality=quality,
)
def usage():
print(f'Usage: {os.path.basename(__file__)} [-h|--help] [-r|--resize] [-q|--quality QUALITY] [-s|--size SIZE]')
print('Compress and optionally resize all images (jpg|jpeg|png|webp|gif) in the current folder')
print(' -h | --help Prints this help')
print(' -r | --resize Set this to resize the images')
print(' -q | --quality QUALITY Specify the quality (1-100, default 80)')
print(' -s | --size SIZE Specify the size of the long side (default 900)')
def main(argv):
# save arguments and options to variables
try:
opts, args = getopt.getopt(argv, 'hrq:s:', ['help', 'resize', 'quality=', 'size='])
except getopt.GetoptError as err:
print(err)
usage()
sys.exit(2)
# default values
quality_img = 80
resize = False
size = 900
# parse arguments
for o, a in opts:
if o in ('-h', '--help'):
usage()
sys.exit()
elif o in ('-r', '--resize'):
print(o)
resize = True
elif o in ('-q', '--quality'):
print(o, a)
quality_img = int(a)
elif o in ('-s', '--size'):
print(o, a)
size = int(a)
else:
assert False, 'unhandled option'
# save directory name
directory_name = 'compress'
# save directory name and full path
final_path = f"{os.getcwd()}/{directory_name}"
try:
# if save directory exists
if 'compress' in os.listdir():
pass
else:
# if save directory does not exist
# create save directory
os.mkdir(final_path)
except Exception as e:
print(e)
# only support these 4 formats
formats = ('.jpg', '.jpeg', '.png', '.webp', '.gif')
# get all files
for file in os.listdir(os.getcwd()):
# check file and compress file
if os.path.splitext(file)[1].lower() in formats:
# call compress function
compressor(file, final_path, quality_img, resize, size)
print("Done")
# Driver code
if __name__ == "__main__":
main(sys.argv[1:])