(a) Explain how Histogram can aid in the process of thresholding and…

Previous year question for Digital Image Processing.

Question

(a) Explain how Histogram can aid in the process of thresholding and contrast stretching.

(b) Perform Histogram stretching so that the new image has a dynamic range of $[0, 7]$ :

Gray level | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7

---|---|---|---|---|---|---|---|---

No. of Pixels | 50 | 0 | 50 | 0 | 50 | 0 | 50 | 0