VSL Image Appearance Library

Python module for working with color spaces and stuff

Usage

Color space conversion:

• Convert from sRGB to libRGB

from vsl_ial.cs import convert, sRGB, linRGB

convert(sRGB(), linRGB(), color=[0.12412, 0.07493, 0.3093])

Available color spaces

Function name	Color space description
XYZ()	CIE XYZ
CIExyY()	CIE xyY
CIELUV()	CIELUV
CIELAB()	CIELAB
ProLab()	proLab
Oklab()	Oklab
ICaCb()	ICaCb
ICtCp()	ICtCp
JzAzBz()	Jzazbz
CAM02LCD()	CAM02-LCD
CAM02SCD()	CAM02-SCD
CAM02UCS()	CAM02-UCS
CAM16LCD()	CAM16-LCD
CAM16SCD()	CAM16-SCD
CAM16UCS()	CAM16-UCS
sRGB()	sRGB
linRGB()	linear sRGB
LMS()	LMS
Opponent()	Opponent color space by Zhang and Wandell

Available measures of the consistency between perceived and computed color differences

• CV
• PF/3
• STRESS
• Mean STRESS
• Group STRESS
• Weighted group STRESS

For module developers

• How to make whl file:

python -m pip install --upgrade build
python -m build

• How to run unit tests:

python -m unittest

• How to run coverage:

python -m coverage run -m unittest
python -m coverage html