Pillow
Python Imaging Library.
Project Source: https://github.com/python-imaging/Pillow
Project Homepage: http://python-imaging.github.io/

thumbor
thumbor is a smart imaging service. It enables on-demand crop, resizing and flipping of images.
Project Source: https://github.com/thumbor/thumbor
Project Homepage: https://github.com/thumbor/thumbor/wiki

kartograph.py
Kartograph is a Python library that generates SVG maps from ESRI shapefiles.
Project Source: http://kartograph.org/docs/kartograph.py/
Project Documentation: http://kartograph.org/docs/kartograph.py/

mpld3
This is an interactive D3js-based viewer which brings matplotlib graphics to the browser.
Project Source: https://github.com/jakevdp/mpld3
Project Homepage: http://mpld3.github.io/

apitrace
Tools for tracing OpenGL, Direct3D, and other graphics APIs.
Project Source: https://github.com/apitrace/apitrace
Project Homepage: http://apitrace.github.io/

colorific
Automatic color palette detection.
Project Source: https://github.com/99designs/colorific

starwars-dot-gif
Python script to generate gifs from star wars.
Project Source: https://github.com/LindseyB/starwars-dot-gif

python-qrcode
Python QR Code image generator.
Project Source: https://github.com/lincolnloop/python-qrcode
Project Documentation: https://pypi.python.org/pypi/qrcode

scikit-image
Image Processing SciKit
Project Source: https://github.com/scikit-image/scikit-image
Project Homepage: http://scikit-image.org/

imutils
A series of convenience functions to make basic image processing operations such as translation, rotation, resizing, skeletonization, and displaying Matplotlib images easier with OpenCV and Python. Project Source: https://github.com/jrosebr1/imutils