Re: Bug with binary TIFF images (imagej 1)

Posted by Rasband, Wayne (NIH/NIMH) [E] on Jun 19, 2014; 4:57pm
URL: http://imagej.273.s1.nabble.com/Bug-with-binary-TIFF-images-imagej-1-tp5008300p5008330.html

On Jun 18, 2014, at 3:09 PM, Antoine Vandecreme wrote:

> Hello all,
>
> According to the TIFF specification, the default value for BitsPerSample is 1.
> See http://www.awaresystems.be/imaging/tiff/tifftags/bitspersample.html
> However, ImageJ has the default FileInfo.fileType=GRAY8 causing either an
> incorrect interpretation of the data (small images) or an error when opening a
> big image (see attached screenshot) if the tag is not explicitly set in the
> image (see attached test.tif, the image should be entirely white).
>
> The fix is to modify TiffDecoder.OpenIFD by adding
> fi.fileType = FileInfo.BITMAP;
> right before the for loop

This bug fix is in the latest ImageJ daily build (1.49c15).

-wayne

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