How do I change the color channel's value using variables?

3 次查看（过去 30 天）

Maria Jeseca Baculo 2017-8-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/352827-how-do-i-change-the-color-channel-s-value-using-variables

评论： Maria Jeseca Baculo 2017-8-16

I am working on a project which aims to recolor a certain part of an image. I created a matlab function that accepts numerical values for the RGB channels. However, this code will only run once smoothly, then on the succeeding executions, a mismatch error will appear. What seems to be the problem with my code? Thanks :)

        % Extract the individual red, green, and blue color channels.
        redChannel = maskedImage(:, :, 1);
        greenChannel = maskedImage(:, :, 2);
        blueChannel = maskedImage(:, :, 3);
        % Make the red channel that color
        redChannel(edge2) = red;
        greenChannel(edge2) = grn;
        blueChannel(edge2) = blu;        
        maskedImage = cat(3, redChannel, greenChannel, blueChannel);

5 个评论
显示 3更早的评论隐藏 3更早的评论

Maria Jeseca Baculo 2017-8-15

also, the parameters are sent by a python web app via matlab engine. Thanks again :)

Maria Jeseca Baculo 2017-8-15

yes, I made sure that the values are uint8 values, the thing is, the code works fine with constant values. But when these variables are used, it only runs once without the error.

请先登录，再进行评论。

请先登录，再回答此问题。