How can i plot hyperspectral data matrix?

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vittorio calbucci
vittorio calbucci 2017-12-18
评论： Walter Roberson 2017-12-18
I would like to rebuild the image from hyperspectral data matrix. My data matrix are made of 264 spectra of 248 values of lambda. The the image i would like to build has to be of 33*8 pixels where every pixel is a spectrum. Thank's

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回答（1 个）

Walter Roberson
Walter Roberson 2017-12-18
You can reshape() to [33, 8, 248], to get an array of pixels with 248 channels per pixel, but there is no way to plot in 248 dimensions.
Perhaps it would be acceptable to use volume visualization techniques, such as
volumeViewer( reshape(YourData, 33, 8, []) )
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vittorio calbucci
vittorio calbucci 2017-12-18
The results it's not really what i'm looking for and i got an error related to the image function. in my case it will be better to reshape the image in this way (248,33,8) but i already receive an error on the imagesc function
Walter Roberson
Walter Roberson 2017-12-18
temp1 = reshape(YourArray, 8, 33, []);
temp2 = std(temp1, 0, 3);
imagesc( temp2 );
colormap(gray(256))

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