A. Noise models are used to enhance the image quality. In computer vision image is the  cornerstone in terms of relative information. However, during the transmission of  images due to multiple factors the quality of image suffer drastically. Different noise  models has been presented to cope up with this issue you are required to design a system  which take image as an input and after applying the noise models it gives you the  enhanced image as an output. HINT: Apply all noise models and display it in a single  window. 

B. Write down the code to display an Image’s Histogram in MATLAB?