Image is too big to fit on screen!!

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bazinga
bazinga 2013-11-12
评论： bazinga 2013-11-12
Hi,
I'm currently working on a project; and I have some uint16 dicom images. But when I try to display these images by using imshow, I get a warning saying that image is too bigto fit on screen, displaying at 73%. I have already tried imresize, imscrollpanel and imagemagnification but I still get full black images.
Any suggestion would help. Thanks

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Image Analyst
Image Analyst 2013-11-12
Being all black is not related to the warning. The warning merely says that it's shrinking your huge image down so that it will fit into the smaller axes you have. Don't worry about it. If you want to turn that error off, you can - just see this snippet:
% Turn off this warning "Warning: Image is too big to fit on screen; displaying at 33% "
% To set the warning state, you must first know the message identifier for the one warning you want to enable.
% Query the last warning to acquire the identifier. For example:
% warnStruct = warning('query', 'last');
% messageID = warnStruct.identifier
% messageID =
% MATLAB:concatenation:integerInteraction
warning('off', 'Images:initSize:adjustingMag');
What are the max and min values of your array?
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Image Analyst
Image Analyst 2013-11-12
The [] scaled the image's actual min and max between 0 and 255 for display. You probably had 16 bit images which maybe went from 0 - 3000 or so but if you don't use [], it will scale the max for that class (uint16 which is 65535) to be 255. Which means that if your actual max was 3000, it would show up as 3000/65535 * 255 = 11 gray levels, which is too dark to see.
bazinga
bazinga 2013-11-12
Oh okay I understand now, thank you very much :)

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