OpenCV-LUT-Editor
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Tool to create freehand color correction lookup tables for OpenCV
OpenCV-LUT-Editor
Tool to create freehand color correction lookup tables for OpenCV Implemented in Processing for OpenCV and experimentational research.

Generate your own lookup table for OpenCVs Numpy-Python Bindings and get an easy access to use the LUT function in OpenCV:
img = cv2.LUT(img, lut_sat)
A possible look right here:

Usage
Download the specific application directory for your plattform and run the executable or script file if you dont have Processing. If you have the Processing IDE or you want to change the code, checkout the project and import it to your Processing sketchbook.