Question

I am new to Matlab and to Image Processing as well, I know we can change image brightness by following formula if my image is I

newImg=imadjust(I, [low_in high_in], [low_out,high_out]);

it adjust all pixel’s value of image but how can I do it on some part of image, like I detected face in the image now I want change its brightness how can I do it using imadjust.

Edit

I have detected area in a binary mask.

I done it please see the answer and also the reference in the answer.

Answer 1

I done it,

Well I wanted to change the brightness of some area of the image, the area which I wanted was calculated by a binary mask mask, So I did, First I simply change the brightness of my input Image I, and store the result in newImg like this

newImg = imadjust(I, [low_in high_in], [low_out,high_out]);

then apply mask on my orignal image and store value of masked area of newImg like this

I(mask) = newImg (mask);

Reference

I think its informative and not to bore anyone, If you guys wont motivate me then I cant learn, as people closed my thread just because I was asking questions, and I am using same database of Image for different type of projects.