Pan and rgb image appear in black

Question

volk a 2020-5-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/533003-pan-and-rgb-image-appear-in-black

评论： volk a 2020-5-25

images.zip

I have two images that appear in black. One of them is pancromatic and the other one is RGB image. How can I see them correctly in MATLAB? I add images below in .zip format.

Thank you.

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Answer 1

Image Analyst 2020-5-25

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/533003-pan-and-rgb-image-appear-in-black#answer_438203

在 MATLAB Online 中打开

Try this:

grayImage = imread('pan.tif');
[rows, columns, numberOfColorChannels] = size(grayImage)
subplot(1, 2, 1);
imshow(grayImage, []) % Use [] to scale intensity.
impixelinfo
multiImage = imread('multi.tif');
[rows, columns, numberOfColorChannels] = size(multiImage)
[r, g, b] = imsplit(multiImage);
maxValue = max(multiImage(:))
multiImage2 = uint8(rescale(multiImage, 0, intmax('uint8')));
subplot(1, 2, 2);
imshow(multiImage2, []) % Use [] to scale intensity.
impixelinfo

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volk a 2020-5-25

Thank you!

It works for pancromatic image. But, in the second part I get an error says Undefined function or variable 'imsplit'. I am using Matlab 2017b, is there any way to solve this error message?

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