Given the image data "trees.jpg", use MATLAB functions to perform each of the following processes:
a. Use MATLAB to read and display the image.
b. Convert the image to gray scale.
c. Perform histogram equalization for the gray scale image in (b) and display the histogram plots for both the original gray scale image and equalized gray scale image.
d. Perform histogram equalization for the color image in (a) and display the histogram plots of the Y channel for both the original color image and equalized color image.