在MATLAB中翻转和旋转彩色图像 [英] flip and rotate a color image in MATLAB

问题描述

如何在MATLAB中翻转彩色图像（RGB）？
fliplr 似乎没有失去颜色内容，因为它只处理2D。

How do I flip a color image (RGB) in MATLAB? The fliplr does not seem to work without losing the color contents, as it only deals with 2D.

imrotate 也不能旋转彩色图像。

As well, the imrotate may not rotate color images.

推荐答案

函数 flipdim 将用于ND矩阵，而函数 flipud 和 fliplr 仅适用于二维矩阵：

The function flipdim will work for N-D matrices, whereas the functions flipud and fliplr only work for 2-D matrices:

img = imread('peppers.png');     %# Load a sample image
imgMirror = flipdim(img,2);      %# Flips the columns, making a mirror image
imgUpsideDown = flipdim(img,1);  %# Flips the rows, making an upside-down image

注意在最新版本的MATLAB（R2013b及更高版本）中，函数 flip ，而不是 flipdim 。

NOTE: In more recent versions of MATLAB (R2013b and newer), the function flip is now recommended instead of flipdim.

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