Accessing Multiple images in 4D array

2018 6 1
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更新时间：2018 6 4
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I have multiple images stored in a 4D array (width*height*RGB*number of images). Now I want to access each image and display them viz,
imshow(image(:,:,:,1))
should show the first image. But it is not happening as expected and a complete white image is displayed, however, the matrix (image(:,:,:,1)) has different color values. Any suggestion to display the images or to represent the images in some different format so as to display them is highly appreciated. Thank You!

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Ameer Hamza
Ameer Hamza 2018-6-1

3 个投票

It appears that your matrix has double class. imshow gives assumes 1 to the maximum intensity if the matrix type is double. To properly display using imshow() try
imshow(uint8(image(:,:,:,1)))
or
imshow(image(:,:,:,1)/255)

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Ayushi Solanki
Ayushi Solanki 2018-6-4
Yes! It worked for me. Thank you so much!
Stephen23
Stephen23 2018-6-4
Rather then changing the input data you can simply tell imshow what the data range is:
imshow(image(:,:,:,1),[0,255])

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