Bug when reading RGB TIFF files with ROWSPERSTRIP=1

Posted by MRivers on
URL: http://imagej.273.s1.nabble.com/Bug-when-reading-RGB-TIFF-files-with-ROWSPERSTRIP-1-tp5020468.html

Folks,

I believe I have found a bug in ImageJ (1.51j8) when it reads RGB TIFF files with RowsPerStrip=1.

These files are displayed correctly in other applications, including:

-          Microsoft Photos, Paint (Windows 10)

-          IDL (8.5.1)

-          ImageMagick "display" utility on Linux (6.7.8-9)

This is the output of the Linux tiffinfo command on the file:
This is the output of tiffinfo on this file.  Note that Rows/Strip is 1 and Planar Configuration is separate image planes.
*******************************
TIFF Directory at offset 0x300008 (3145736)
  Image Width: 1024 Image Length: 1024
  Bits/Sample: 8
  Sample Format: unsigned integer
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Samples/Pixel: 3
  Rows/Strip: 1
  Planar Configuration: separate image planes
  Make: Unknown
  Model: Unknown
  Software: EPICS areaDetector
*******************************

I have attached 2 PNG files.

rgb2.png is a screen shot of how ImageJ displays this file.  It is incorrect.
rgb2_ImageMagick is a screen shot of how ImageMagick displays this file.  It is correct.  This is also how IDL, Photos, Paint, etc. display this file.

I have not attached the test file because it is quite large.  However, it can be found here:

http://cars.uchicago.edu/data/rivers/imagej/test_rgb2_001.tif

That directory also contains 2 other test files.

test_rgb1_001.tif
This is essential the same data, but with a more conventional TIFF layout of pixel interleave.  It displays correctly in ImageJ, as shown by rgb1.png which is a screen shot of ImageJ display of this file.
This is the output of tiffinfo on this file.  Note that Rows/Strip is 1024 and Planar Configuration is single image plane.
*******************************
TIFF Directory at offset 0x300008 (3145736)
  Image Width: 1024 Image Length: 1024
  Bits/Sample: 8
  Sample Format: unsigned integer
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Samples/Pixel: 3
  Rows/Strip: 1024
  Planar Configuration: single image plane
  Make: Unknown
  Model: Unknown
  Software: EPICS areaDetector
*******************************

test_rgb3_001.tif
This is essential the same data, but with a more conventional TIFF layout of plane  interleave.  It displays correctly in ImageJ, as shown by rgb3.png which is a screen shot of ImageJ display of this file.
This is the output of tiffinfo on this file.  Note that Rows/Strip is 1024 and Planar Configuration is separate image planes.
*******************************
TIFF Directory at offset 0x300008 (3145736)
  Image Width: 1024 Image Length: 1024
  Bits/Sample: 8
  Sample Format: unsigned integer
  Compression Scheme: None
  Photometric Interpretation: RGB color
  Samples/Pixel: 3
  Rows/Strip: 1024
  Planar Configuration: separate image planes
  Make: Unknown
  Model: Unknown
  Software: EPICS areaDetector
*******************************

I searched for the correct way to submit an ImageJ bug report, and saw that there should be a menu item to do that in the Help menu.  But it does not appear in my 1.51j8 version.

Thanks,
Mark Rivers



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