Consider intensity transformation function, s = T(r) = H{arctan[(r128)/32]}, where H{} is a linear operation used to shift and rescale the result of arctan to make the final value s in the range 0 – 255 (same as the range of input intensity r).
Determine
- the transformation function s = T(r),
- the output image after applying the transformation function to the image below, and
- the input and output histograms.
Your report (Word or pdf format) should contain:
- Source codes
- Figure of s = T(r)
- Table of transformation function to show the mapping from the input gray level r to the output gray level s
- Figure of the output image after applying the intensity transformation function
- Figures of the original and output histograms