How can i get RGB value if i have position(x,y)

3 次查看（过去 30 天）
Suree yatho
Suree yatho 2012-1-21
if i have position of image(pixel) . How can i get RGB value of this position?

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2012-1-22
Note that row = y and is the first index, not the second index.
redValue = rgbImage(y, x, 1);
greenValue = rgbImage(y, x, 2);
blueValue = rgbImage(y, x, 3);

更多回答（2 个）

Andrew Fowler
Andrew Fowler 2012-1-21
Since RGB images are really 3D matrices, you can use the squeeze command :
pixelRGB = squeeze(yourImage(x,y,:));
Sukuchha
Sukuchha 2012-1-22
use function impixel if you have image processing toolbox
P = impixel(RGB,c,r)

类别

在 Help Center 和 File Exchange 中查找有关 Image Type Conversion 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