如何在MATLAB中将图像与矩阵水平连接 [英] how to concatenate an image with a matrix horizontally in MATLAB

问题描述

我有一张图像img.我想用零矩阵来使它变平，但是在水平方向上 i-e图像应显示为黑色.

I have an image img. I want to conactenate it with a matrix of zeros, but horizontally i-e image should appear with black color.

推荐答案

为入门，这会在灰度图像的底部添加一行零:

To get you started, this adds a row of zeros to the bottom of a grayscale image:

result = [img; zeros(1,size(img,2))]

这与rgb图片相同:

result = [img; zeros(1,size(img,2),3)]

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