How to visualise Hyperspectral Image in colour?

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Alexandros Polykarpou 2012-10-11

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https://ww2.mathworks.cn/matlabcentral/answers/50495-how-to-visualise-hyperspectral-image-in-colour

回答： Image Analyst 2017-11-15

I am using hyperspectral datasets from this website: http://www.spectir.com/free-data-samples/. I can visualise a picture in gray but not in colour. How can I convert the gray image to an RGB colour image?

Thanks in advance

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Yogesh Awate 2017-11-15

Can someone send me the whole program?

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回答（2 个）

Image Analyst 2012-10-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/50495-how-to-visualise-hyperspectral-image-in-colour#answer_61614

在 MATLAB Online 中打开

Put each spectral channel into one of the color channels:

rgbImage = cat(3, spectralChannel1, , spectralChannel3, , spectralChannel8);
imshow(rgbImage);

or whatever channels you want to use.

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Alexandros Polykarpou 2012-10-12

I know what that is. the question is how can i plot the whole picture with colour. not just a slice.

worku jifara 2017-2-9

i think this may be helpful for you load('ref_crown3bb_reg1.mat') x=reflectances(:,:,17); figure; imagesc(x); colormap('gray');brighten(0.5); y = reflectances(:,:,25); figure; imagesc(y); colormap('gray');brighten(0.5); z=reflectances(:,:,33); figure; imagesc(z); colormap('gray');brighten(0.5); all=cat(3,x,y,z); figure; imshow(all)

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