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2015.01.25 15:44 "How to generate JBIG encoded TIFFs?", by Ludolf Holzheid
2015.01.25 16:34 "Re: How to generate JBIG encoded TIFFs?", by Yuriy Kaminskiy
2015.01.25 17:03 "Re: How to generate JBIG encoded TIFFs?", by Ludolf Holzheid

2015.01.25 15:44 "How to generate JBIG encoded TIFFs?", by Ludolf Holzheid

Hello List,

I compiled libtiff with JBIG support, but I can't get tiffcp to write
the output JBIG encoded (and yes, the input is bi-level data).

If I try to control the conversion with the -t/-s/-r/-l/-w flags, I
get varying error messages, but in no case tiffcp writes any output
(see log attached).

Is this supposed to work?

Ludolf

-- 

Ludolf Holzheid    [ˈluˑ.doːlf ˈhɔlts.haɪd]
Heinrichstraße 6   [ˈhaɪn.ʀɪçˌʃtʀɑː.sə 6]
68642 Bürstadt     [68642 ˈbyːʁ.ʃtat]

PGP key fingerprint: 92DC 63E6 B2CD BCFD 8A6C  E390 6306 0DA6 4629 72FB

$ tiffinfo test-in.tiff 
TIFF Directory at offset 0x72e2 (29410)
  Image Width: 2481 Image Length: 3507
  Bits/Sample: 1
  Compression Scheme: CCITT Group 4
  Photometric Interpretation: min-is-white
  FillOrder: msb-to-lsb
  Samples/Pixel: 1
  Rows/Strip: 26
  Planar Configuration: single image plane
  DocumentName: /tmp/fileMw2vfJ
  ImageDescription: converted PNM file

$ tiffcp -c jbig test-in.tiff test-out.tiff
JBIG: Multistrip images not supported in encoder.
test-out.tiff: Error, can't write strip 0.

$ tiffcp -t -c jbig test-in.tiff test-out.tiff
test-out.tiff: ISO JBIG tile encoding is not implemented.
test-out.tiff: ISO JBIG tile encoding is not implemented.
...

$ tiffcp -s -c jbig test-in.tiff test-out.tiff
JBIG: Multistrip images not supported in encoder.
test-out.tiff: Error, can't write strip 0.

$ tiffcp -s -r-1 -c jbig test-in.tiff test-out.tiff
test-out.tiff: ISO JBIG scanline encoding is not implemented.
test-out.tiff: Error, can't write scanline 0.

$ tiffcp -t -l5000 -w5000 -c jbig test-in.tiff test-out.tiff
test-out.tiff: ISO JBIG tile encoding is not implemented.