32bits save as int32

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Pamela Garcia
Pamela Garcia 2020-6-14
评论： Pamela Garcia 2020-6-14
Hi there,
I have a 32bit tif image https://we.tl/t-H0WliT3O50 . This image is 'single' but Matlab assumes by default 32bit means int32 and when the image is open with imread() the image is binary. I would to read the image using grey scale. How can I do this? I´ve tried itconvert in double but the image is open as binary image.
Any help would be very much appreciated , thanks
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Ameer Hamza
Ameer Hamza 2020-6-14
This tiff file seems to have very unusual encoding. How did you generate the png file from the tiff file?
Pamela Garcia
Pamela Garcia 2020-6-14
It is the result of windows photo visualizer

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Walter Roberson
Walter Roberson 2020-6-14
If you look at imfinfo() of the file, you can see that the headers say it is a collection of nine images with 32 bit signed integer. If it is intended to be single instead, then the metadata is wrong.
for IDX = 1 : 9
imgint32 = imread('lh.average.CURVATURE.tif','index',IDX);
imgsingle{IDX} = reshape(typecast(imgint32(:), 'single'), size(img32));
end

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