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 似乎无法在不丢失颜色内容的情况下工作，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.

同样，imrotate 可能不会旋转彩色图像.

As well, the imrotate may not rotate color images.

推荐答案

函数 flipdim 适用于 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:在较新版本的 MATLAB(R2013b 和更新版本)中，函数 flip 现在推荐代替 flipdim.

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

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