imgutil

Image operation utility

Installation

Installation using pip::

pip install imgutil

Prerequesite

• jpegtran
• pngcrush

Command line utilities

imgoptimize

imgoptimize [-h] [-o OUTPUT] src_img

• Optimize image to reduce file size.
• Usage:
  • -o: Specifiy the output image.
  • src_img: Specify the input image.

Usage

imgoptimize

• imgoptimize(input_filename, output_filename=None)
• It reduces jpeg/png file size.
• It converts CMYK to RGB.

quick example

>>> import os
>>> from imgutil import imgoptimize
>>> test_img = '/tmp/test.jpg'
>>> os.stat(test_img).st_size
81073
>>> imgoptimize(test_img, '/tmp/opt.jpg')  # output to /tmp/opt.jpg
>>> os.stat('/tmp/opt.jpg').st_size
81026
>>> imgoptimize(test_img)                  # optimize the original file
>>> os.stat(test_img).st_size
81026

imgresize

• imgresize(input_filename, width=None, height=None, output_filename=None)
• It can resize image and preserve aspect ratio.
• It can resize image to specified dimension.

quick example

>>> from imgutil import imgresize
>>> test_img = '/tmp/test.jpg'    # It is a 1024x768 image
>>> imgresize(test_img, width=600, output_filename='/tmp/resize.jpg') # /tmp/resize.jpg is 600x450
>>> imgresize(test_img, height=600, output_filename='/tmp/resize.jpg') # /tmp/resize.jpg is 800x600
>>> imgresize(test_img, width=100, height=100, output_filename='/tmp/resize.jpg') # /tmp/resize.jpg is 100x100
>>> imgresize(test_img, width=200, height=400) # /tmp/test.jpg is 200x400 now