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Bilevel tif annotate
Posted: 2011-09-03T18:42:22-07:00
by BlueD
Hi,
I tried to annotate a bilevel tiff file
Code: Select all
[D:\temp\02]identify 1.tif
1.tif TIFF 1392x2424 1392x2424+0+0 1-bit Bilevel DirectClass 29.2KB 0.000u 0:00.041
[D:\temp\02]convert 1.tif -fill black -stroke black -pointsize 100 -annotate +0+100 "Hello" 2.tif
No error message. But the result file (2.tif) is broken.
If I convert it to png
Code: Select all
[D:\temp\02]convert 1.tif -fill black -stroke black -pointsize 100 -annotate +0+100 "Hello" 2.png
Then everything is fine.
IM version: ImageMagick-6.7.2-0-Q8-windows-dll.exe
Code: Select all
[D:\temp\02]convert -version
Version: ImageMagick 6.7.2-0 2011-08-24 Q8 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2011 ImageMagick Studio LLC
Features: OpenMP
Re: Bilevel tif annotate
Posted: 2011-09-03T19:00:37-07:00
by BlueD
And if I add ccitt4 compression:
Code: Select all
[D:\temp\02]convert 1.tif -fill black -stroke black -pointsize 100 -annotate +0+100 "Hello" -compress group4 2.tif
Then everything is fine, again.
Re: Bilevel tif annotate
Posted: 2011-09-03T20:23:18-07:00
by fmw42
what exactly do you mean by broken?
This works fine for me on IM 6.7.2.1 Q16 (HDRI) Mac OSX Tiger
convert logo: -type bilevel logo_tmp1.tif
convert logo_tmp1.tif -fill black -stroke black -font Arial -pointsize 100 -annotate +0+100 "Hello" logo_tmp2.tif
what does the following tell you about the compression of your image?
identify -verbose 1.tif
perhaps it has to do with the type of compression in your input image.
you probably should post your tiff file for the IM developers to test and examine.
Re: Bilevel tif annotate
Posted: 2011-09-03T22:25:30-07:00
by BlueD
Code: Select all
convert logo: -type bilevel logo_tmp1.tif
convert logo_tmp1.tif -fill black -stroke black -font Arial -pointsize 100 -annotate +0+100 "Hello" logo_tmp2.tif
logo_tmp2.tif cannot be viewed in "Windows picture and fax viewer"(no preview available), showed rubbish in xnview and showed wrong colors in imdisplay.
That's what I mean "broken".
Re: Bilevel tif annotate
Posted: 2011-09-04T10:27:42-07:00
by fmw42
The this must be a windows issue. Hopefully the IM developers will be able to check it out.
Re: Bilevel tif annotate
Posted: 2011-09-04T17:15:59-07:00
by Jason S
The logo_tmp2.tif file I got was LZW-compressed, with a 1-bit black/white channel and a 1-bit alpha channel. This is an arguably-valid TIFF image, but application support for it is very low.
If you know you don't need transparency, doing something to remove it (e.g. "+matte") should help.
Re: Bilevel tif annotate
Posted: 2011-09-05T06:49:58-07:00
by BlueD
Thanks.
But why put the alpha channel there in the first place?
Re: Bilevel tif annotate
Posted: 2011-09-05T10:10:53-07:00
by fmw42
Again I would suggest you post a link to your image so that the IM developers or others can test with it.
Is the 1-bit alpha channel all opaque or part opaque and part transparent? What does identify -verbose yourimage.tif list?
I don't think IM supports a bilevelmatte type -- that is bilevel tiff with transparency. I have been unable to create a bilevel tiff with any kind of alpha channel (compressed or not)
convert logo: -type bilevel logo_bl.tif
convert logo_bl.tif -alpha copy logo_bl_alpha.tif
identify -verbose logo_bl_alpha.tif
Segmentation fault
convert logo_bl.tif -alpha opaque logo_bl_opaque.tif
identify -verbose logo_bl_opaque.tif
Segmentation fault
Re: Bilevel tif annotate
Posted: 2011-09-05T13:23:43-07:00
by magick
We get a bilevel TIFF image with an associated alpha channel as expected using ImageMagick 6.7.2-2 with LIBTIFF, Version 3.9.5.
Re: Bilevel tif annotate
Posted: 2011-09-05T14:02:48-07:00
by fmw42
magick wrote:We get a bilevel TIFF image with an associated alpha channel as expected using ImageMagick 6.7.2-2 with LIBTIFF, Version 3.9.5.
I was using IM 6.7.2.1 Q16 (HDRI) Mac OSX Tiger with libtiff 3.9.5 and was unsuccessful as above. What was your exact command to create the bilevel tiff with transparency (and LZW compression?).
Re: Bilevel tif annotate
Posted: 2011-09-05T14:33:56-07:00
by magick
We used the same command you did: convert logo_bl.tif -alpha copy logo_bl_alpha.tif.
Re: Bilevel tif annotate
Posted: 2011-09-05T16:47:51-07:00
by fmw42
magick wrote:We used the same command you did: convert logo_bl.tif -alpha copy logo_bl_alpha.tif.
I am still getting the same seg fault from the test above using IM 6.7.2.2 Q16 (HDRI) Mac OSX Tiger with libtiff 3.9.5.
convert logo: -type bilevel logo_bl.tif
convert logo_bl.tif -alpha copy logo_bl_alpha.tif
identify -verbose logo_bl_alpha.tif
segmentation fault
Might it have to do with HDRI mode?
Re: Bilevel tif annotate
Posted: 2011-09-05T17:26:20-07:00
by magick
HDRI should not be a factor. Try this
- gdb identify
run -verbose logo_bl_alpha.tif
bt
Post the results.
Re: Bilevel tif annotate
Posted: 2011-09-05T18:05:02-07:00
by fmw42
magick wrote:HDRI should not be a factor. Try this
- gdb identify
run -verbose logo_bl_alpha.tif
bt
Post the results.
Code: Select all
gdb identify
GNU gdb 6.3.50-20050815 (Apple version gdb-696) (Sat Oct 20 18:20:28 GMT 2007)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "powerpc-apple-darwin"...
warning: --arch option not supported in this gdb.
Reading symbols for shared libraries ............................. done
(gdb) run -verbose logo_bl_alpha.tif
Starting program: /usr/local/bin/identify -verbose logo_bl_alpha.tif
Reading symbols for shared libraries .+.+++.................................................................++++++++++++++++++++ done
Reading symbols for shared libraries . done
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x02eb5000
0x0112239c in ImportQuantumPixels (image=0x2004600, image_view=0x0, quantum_info=0x2908dd0, quantum_type=GrayAlphaQuantum, pixels=0x200d800 '?' <repeats 160 times>, exception=0x29039b0) at magick/quantum-import.c:1648
1648 SetPixelBlue(q,GetPixelRed(q));
(gdb) bt
#0 0x0112239c in ImportQuantumPixels (image=0x2004600, image_view=0x0, quantum_info=0x2908dd0, quantum_type=GrayAlphaQuantum, pixels=0x200d800 '?' <repeats 160 times>, exception=0x29039b0) at magick/quantum-import.c:1648
#1 0x01e42ff4 in ReadTIFFImage (image_info=0x1e3b000, exception=0x29039b0) at coders/tiff.c:1248
#2 0x01046c90 in ReadImage (image_info=0x1e36000, exception=0x29039b0) at magick/constitute.c:523
#3 0x01047adc in ReadImages (image_info=0x1e36000, exception=0x29039b0) at magick/constitute.c:889
#4 0x00652070 in IdentifyImageCommand (image_info=0x0, argc=3, argv=0x2904030, metadata=0xbffffac8, exception=0x29039b0) at wand/identify.c:319
#5 0x006838a0 in MagickCommandGenesis (image_info=0xfb000, command=0x651850 <IdentifyImageCommand>, argc=3, argv=0xbffffbcc, metadata=0xbffffac8, exception=0x29039b0) at wand/mogrify.c:169
#6 0x00002c90 in IdentifyMain (argc=3, argv=0xbffffbcc) at utilities/identify.c:80
#7 0x0000284c in _start ()
#8 0x00002550 in start ()
(gdb)
It seems to stop here and repeat each time I hit "return". So I cancelled here. Let me know if I should let it run longer or do something at each (gdb) prompt.
Re: Bilevel tif annotate
Posted: 2011-09-05T18:39:41-07:00
by magick
We can reproduce the problem. Look for a patch in ImageMagick 6.7.2-3 Beta available by sometime tomorrow. Thanks.