Hello @Tharuprabha
This should be a simple task to be achieved in Python
If you need further advice please provide details about the type compare analysis (visual, statistic…) . Besides some example of expected compare analysis outputs.
I’ve developed a couple of examples using Py Pillow image analysis (not RGB), already implemented in KNIME. You may want to check for insights:
BR
P.S.- Maybe @mlauber71 already have some published examples for RGB analysis