将GIF图像和颜色图组合到3-D图像阵列 [英] Combining GIF images and colormaps to 3-D image arrays

问题描述

当我读取彩色JPEG图像时:

When I read a color JPEG image:

jpgim = imread('path/to/image.jpg')

我得到一个MxNx3阵列.但是，对于GIF文件，我还需要读取颜色图 :

I get an MxNx3 array. However, with GIF files I also need to read the colormap:

[gifim, map] = imread('path/to/image2.gif')

让我们假设如果GIF图像是动画的，则我只需要第一帧:gifim = gifim(:,:,:,1)有没有一种方法可以使用gifim和map获得标准的MxNx3图像阵列，因为这是我后期处理的内容管道期望吗?

Let's assume that I need only the first frame if the GIF image is animated: gifim = gifim(:,:,:,1) Is there a way to get a standard MxNx3 image array using gifim and map as that is what later parts of my processing pipeline expect?

推荐答案

使用 ind2rgb :

im = ind2rgb(gifim, map);

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