Manually compute histrogram and display using bar function,

write function myhist to manually compute the histogram of grayscale image and display the histgoram using bar function

[Orion]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

[Rick Rosson]

What have you tried so far? Please post your code and ask specific questions if you need help.

Answer 1

[Image Analyst]

Hint: Use a for loop

[rows, columns, numberOfColorChannels] = size(grayImage);
for col = 1 : columns
  for row = 1 : rows
    grayLevel = grayImage(row,..............

Sounds like a homework problem so I won't do the whole thing for you. This should be more than enough to let you finish it.