T-shaped part - uniform illumination.

(wdg1)

The original image.

(wdg1usp1)

Result of mean filtering wdg1 with a 3×3 square kernel, and then pixel subtracting that away from the original. See unsharp masking.

(wdg1usp2)

Result of mean filtering wdg1 with a 3×3 square kernel, translating (for re-registration) and then pixel subtracting that away from the original. See unsharp masking.

(wdg1usp3)

Result of mean filtering wdg1 with a 3×3 square kernel, translating (for re-registration), dimming this result by pixel multiplication and then pixel subtracting away from the original. See unsharp masking.

(wdg1usp4)

Result of cropping and zooming a section of wdg1usp2.

©2003 R. Fisher, S. Perkins, A. Walker and E. Wolfart.