Output TIFF has problematic FillOrder
Posted: 2011-03-21T08:45:03-07:00
I'm using IM to create a fading-out image sequence of a single input image. I'm using the composite command with a changing blend factor to combine the input image with a black image. Both input and output are in TIFF, but I noticed that the output image uses a FillOrder of 2 (lsb-to-msb). From what I read about this tag it's very uncommon to use anything other than FillOrder=1 (msb-to-lsb). Furthermore, the input image has FillOrder=2 so I don't understand why it would change. The reason I actually ran into to this is that FFmpeg doesn't seem to be happy to process TIFF files with FillOrder=1 (not surprisingly).
Here's relevant info from the TIFF files and used composite command:
This is on an Ubuntu 10.04.2 LTS x86_64 system, with IM 6.5.7-8 (7:6.5.7.8-1ubuntu1.1)
Here's relevant info from the TIFF files and used composite command:
Code: Select all
paulmlocal@sara0140:~/interop_2011/anim_title$ tiffinfo water.tif
TIFF Directory at offset 0x136a7e (1272446)
Image Width: 1280 Image Length: 720
Resolution: 100, 100 pixels/inch
Bits/Sample: 8
Compression Scheme: AdobeDeflate
Photometric Interpretation: RGB color
FillOrder: msb-to-lsb
Orientation: row 0 top, col 0 lhs
Samples/Pixel: 3
Rows/Strip: 2
Planar Configuration: single image plane
Page Number: 0-1
DocumentName: water2.tif
Software: ImageMagick 6.5.7-8 2010-12-02 Q16 http://www.imagemagick.org
Predictor: horizontal differencing 2 (0x2)
paulmlocal@sara0140:~/interop_2011/anim_title$ composite -blend 50 water.tif -size 1280x720 xc:black -depth 8 -compress Zip doh.tif
paulmlocal@sara0140:~/interop_2011/anim_title$ tiffinfo doh.tif
TIFF Directory at offset 0xe029a (918170)
Image Width: 1280 Image Length: 720
Resolution: 72, 72 (unitless)
Bits/Sample: 8
Compression Scheme: AdobeDeflate
Photometric Interpretation: RGB color
FillOrder: lsb-to-msb
^^^^^^^^^^^^^^^^^^^^^^^
Orientation: row 0 top, col 0 lhs
Samples/Pixel: 3
Rows/Strip: 720
Planar Configuration: single image plane
Page Number: 0-1
DocumentName: doh.tif
Software: ImageMagick 6.5.7-8 2010-12-02 Q16 http://www.imagemagick.org
Predictor: horizontal differencing 2 (0x2)