Image Processing Example

1. I developed a MATLAB program performing histogram equalization on the input (grayscale) image. The requested are as follows:

• First, write your own histogram equalization algorithm.
• Then, use built-in histogram equalization function of MATLAB (histeq).
• Program should run like >> image_histeq(‘filename.ext’)
• Program should finally display the items below in the same window (Hint. Use subplot function).
  • Input image and its histogram.
  • Output image of your algorithm and its histogram.
  • Output image of histeq function and its histogram e. Use “hw2_problem1.tif” to test your program.

2. I developed a MATLAB program applying 3x3 averaging filter to the input (grayscale) image. The requested are as follows:

• First, write your own algorithm for filtering.
• Size of the output image should be equal to size of the input image.
• Then, use built-in image filtering function of MATLAB (filter2)
• Program should run like >> image_filter(‘filename.ext’)
• Program should finally display the items below in the same window (Hint. Use subplot function).
  • Input image.
  • Output image of your algorithm.
  • Output image of filter2 function f. Use “hw2_problem2.tif” to test your program.