Extensive list of Image enhancement methods implementation in Python

Currently have implemenatations for

• Chromatic Adaptation
• Retinex Image Enhancement
• Whiteboard Image Enhancement

How to run?

Every implemenation is separated in each directory with a respective script file. Run the script files to process the image.

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Chromatic Adaptation

Read about the algorithm and implementation in my blog post Image Enhancement using Retinex Algorithms

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Retinex Image Enhancement

Read about the algorithm and implementation in my blog post Color constancy of an image using Chromatic adaptation

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Whiteboard Image Color Enhancement

Enhance whiteboard images by applying image-processing techniques. Whiteboard image color enhancement is based on this ImageMagick command line gist

Converted following ImageMagick commands to Python and OpenCV by applying enhancement functions like

• Difference of Gaussian (DoG)
• Contrast Stretching
• Gamma Correction

-morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1

Run whiteboard_image_enhance.py by passing input and output image path

$ python whiteboard_image_enhance.py -i input.jpg -o output.jpg

Checkout the details in my article Whiteboard image enhancement using OpenCV

Results

Original	Enhanced