How to Validate Bilateral Filter Implementation?
I'm assuming implementation which is defined by two parameters - Color Range STD and Spatial STD.

Few Properties:


If you set the Color Range STD to be high, the result should be very very similar to Gaussian Blur with the Spatial STD.
If you set the Color Range STD to be very near zero, the output image should be with no change (No smoothing at all).
Good image to test things on is Black White rectangles (Like Checkers).