Question

In this exercise you should write a Python function that computes

the histogram of an intensity (gray scale) image. Do not use specifific Python

functions for histogram computation (like hist or imhist).

Create a new function my_hist and start with the following lines:

function [h] = my_hist(im)

% H = MY_HIST(IM) computes the histogram for the intensity

% image IM (with values from 0 to 255) and returns a vector H

% with 256 dimensions

% get the image size: M = number of rows, N = number of columns

[M, N] = size(im);

% initilalize the histogram to zero

h = zeros(1,256);

% ... here goes your code ...

end % – do not forget the END!

To test your function, save the m-fifile and type at the prompt (omit the

comments):

% read image fifile

 I = imread(boat.tif);

% compute the histogram

 H = my_hist(I);

% display the result