A$.$ What to DO:

The general form of the log transformation function is $s=T(r)=c^{***}log(1+r),$ where $\text{'}s\text{'}$ and $\text{'}r\text{'}$

are the output and input pixel values, and $\text{'}c\text{'}$ is the scaling constant. Implement log

transformation and power law transformation. Use the image $($fourierspectrum$.$pgm$)$

to test the algorithms. Comment on the similarity$/$difference between log transformation

and power$-$law transformation.

Apply the histogram equalization to grayscale images with contrast issues. Draw the

histogram of the input and output images. Calculate the mean and standard deviation of

the input and output images.