MATLAB: Imfinfo error

imfinfotiff

I was just trying to collect some information from a tif stack file to know how many frames there are in this specific tif file named test. However there is some error I never encountered before and I can't find an answer online. so I post it here hope someone can answer it for me. Or can help me find another way to get the frame number information. When I was trying to open the same file with image processing toolbox it also encountered the same error. My image processing toolbox can open other jpg files.

Here's my test code and error.

>> t=imfinfo('test.tif')

??? Unexpected Standard exception from MEX file. What() is:invalid string position

Error in ==> imtifinfo at 57 raw_tags = tifftagsread ( filename );

Error in ==> imfinfo at 178 info = feval(fmt_s.info, filename);

Best Answer

It's possible that this is the bug referenced by http://www.mathworks.com/support/bugreports/737970

Can you post your image somewhere for me to take a look at it?

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Unfortunately, I think the only answer for this is a bug in Matlab dicomread for jpeg lossless transfer syntax 1.2.840.10008.1.2.4.70.

I used http://support.dcmtk.org/docs-dcmrt/dcmdjpeg.html to decompress the same image and matlab reads the decompressed image as expected.

MATLAB: How to show Tiff stacks

You can read each tiff image in one at a time using imread (note I'm making some assumptions...like you do indeed have a multipage tiff):

tiff_info = imfinfo('2-A^11815^52071.tif'); % return tiff structure, one element per image
tiff_stack = imread('2-A^11815^52071.tif', 1) ; % read in first image
%concatenate each successive tiff to tiff_stack
for ii = 2 : size(tiff_info, 1)
    temp_tiff = imread('2-A^11815^52071.tif', ii);
    tiff_stack = cat(3 , tiff_stack, temp_tiff);
end

And you can then use the 'append' switch to write each tiff as a new image in a multi-page tiff:

%write a Tiff file, appending each image as a new page
for ii = 1 : size(tiff_stack, 3)
    imwrite(tiff_stack(:,:,ii) , 'new_stack.tif' , 'WriteMode' , 'append') ;
end

Best Answer

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