Can someone please help me with these on matlab! Thank you

4. Create a 200x200 matrix of random integers in the range [0, 64]. Display the image/matrix with image). Write a function to take the image and contrast stretch the image from [0,255.Display the new image with image( Display both images with the 256-element gray colormap. 5. Form the histograms of the two images created in Problem #4. Display them on the same graph. Use the function, [ n, v] hist (x, 65). =