MATLAB: How can i implement given formula in image processing

Image Processing Toolboxpoint

i have to aplly this foumula for contrast streching plz give me matlab program of this formula

s=(a-rmin)*(L/(rmax-rmin)); where L=256 rmin=0 rimax=255

Best Answer

There are lots of options for this:

Please check out the Matlab functions here.

You might need to define smaller blocks in your image and apply it locally depending on your requirements

Related Solutions

MATLAB: How to conversion from rgb to hsv without rgb2hsv and contrast stretching

Go here for the formulas http://easyrgb.com/en/math.php

MATLAB: Assigning color to gray image

I'd just use colormap and not mess with contours unless you know what you're doing and what you want. To pseudocolor a grayscale image an leave it as grayscale but display it as colored:

imshow(grayImage);
colormap(jet(256));
colorbar;

To convert a grayscale image into a true color RGB image and display the RGB image instead of the pseudocolored image:

rgbImage = ind2rgb(grayImage, jet(256));
imshow(rgbImage);

You don't use color bars with RGB images.

Best Answer

Related Solutions

MATLAB: How to conversion from rgb to hsv without rgb2hsv and contrast stretching

MATLAB: Assigning color to gray image

Related Question