How to create RGB image with 3 bands from hyperspectral image?

Question

Duygu Ocal 2015-3-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/183373-how-to-create-rgb-image-with-3-bands-from-hyperspectral-image

评论： Walter Roberson 2016-3-28

Hi, I have a Hyperion EO-1 satellite image and i want to create an RGB band with band numbers (40,31,13) as (R,G,B). The hyperion image has 242 bands. But I'm having trouble opening the L1R file properly.

I am using Matlab 2011, and 2014 hyperion image. I load the image with hdfinfo and hdfread commands like this;

hdfinfo('EO1H1930282003203110PY.L1R');
fileinfo = hdfinfo('EO1H1930282003203110PY.L1R');
sds_info = fileinfo.SDS(1);
hdfread(sds_info);
ans=imhdf;
But this loads a matrix [3128,242,256] , although it should be [3128,256,242] how can i fix this?

After loading the image as 3D matrix i try to create the RGB image with selecte 3 bands as shown below it creates [3128,3,256] matrix but I cant use imwrite, imshow or any other displaying functions on it.

imrgb [:,1,:] = imhdf [:,40,:];
imrgb [:,2,:] = imhdf [:,31,:];
imrgb [:,3,:] = imhdf [:,13,:];
image(imrgb);
Error using image
Error using image
Indexed CData must be size [MxN], TrueColor CData must be
size [MxNx3]

Please answer, thank you.

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Answer 1

tamer dnmzgllr 2016-3-28

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/183373-how-to-create-rgb-image-with-3-bands-from-hyperspectral-image#answer_215296

merhabalar,

hemen hemen aynı işle uğraşmaktayım. 1 yıl önceki sorunuzu internette gördüm de. L1R formatındaki görüntüyü hdfinfo ve hdfread komutları kullandıktan sonra RGB image yaratmam gerekiyor. sorunuzdan sonraki çözümünüz nasıl oldu. paylaşabilirseniz sevinirim

Teşekkürler.

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Walter Roberson 2016-3-28

Approximate translation:

Hello,

It was dealing with almost the same process. 1 year I saw your earlier question on the internet as well. After using image hdfinfo hdfread commands in L1 and I had to create RGB image format. Your next question was how your solution. I would appreciate if you could share

Thank you.

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