Adding a Brightness Value

13 次查看（过去 30 天）
Alexiss Rivas
Alexiss Rivas 2017-6-11
回答： KSSV 2017-6-12
Can someone help me in writing a code that brightens the top left corner of an image by y, where y is an integer variable representing the amount by which to increase brightness. I'm still in the basics, so I need to use for loops or vectorization, no brightness function. Just writing out an actual code that can manipulate the sizes and layers.
I know that I will be using something along the lines of i= 1:row/2: end and j= 1: col/2: end... or at least I think so?
Thanks!

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2017-6-12
I = imread('your image') ;
y = 100 ; % add pixel value
I(1,1,:) = I(1,1,:)+y; % top left corner is given by (1,1)

类别

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by