how to convert a cell array into an image?
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kanwal on 4 Oct 2014
Commented: jumana eltrabelsi on 14 Apr 2022
I fetched an image from sql database but its returning format is like i=[75839 int8] how can i convert it into image plz help me out
Guillaume on 5 Oct 2014
If the bytes you get are truly a jpg image, you may be able to decode it with java:
jimage = javax.imageio.ImageIO.read(java.io.ByteArrayInputStream(d));
height = jimage.getHeight;
width = jimage.getWidth;
pixels = reshape(typecast(jimage.getData.getDataStorage, 'uint8'), [3,width,height]);
img = cat(3, ...
transpose(reshape(pixels(3,:,:), [width,height])), ...
transpose(reshape(pixels(2,:,:), [width,height])), ...
More Answers (1)
Image Analyst on 4 Oct 2014
Edited: Image Analyst on 4 Oct 2014
You need to take the (badly-named) i and reshape it into a 2 or 3D array, but you need to know the number of rows and columns.
cellContents = cell2mat(i); % Convert from cell to double.
grayImage = reshape(cellContents, [rows, columns]);
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