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December 1998
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1998.12.16 15:32 "Re: Location of various TIFF images.", by Bjorn Brox
Jim Rice wrote this:
>
> Is there an archive of the various formats used in TIFF images. I would
> like to test an application but don't actually have samples of all the
> different file methods. (And yes, I realise that there this would mean
> alot of pictures.)
>
If you are asking about TIFF's of various formates you can create them
yourself using the programs in the tools directory, among these: tiffcp
Example: $BW_FILE is a G4, black and white file, where you can
create all variants with: (korn-shell)
DST_DIR=./test
BW_FILE=mustramp.tif
#TIFF Directory at offset 0x21c2
# Image Width: 640 Image Length: 1024
# Bits/Sample: 1
# Compression Scheme: CCITT Group 4
# Photometric Interpretation: min-is-black
# Orientation: row 0 top, col 0 lhs
# Samples/Pixel: 1
# Rows/Strip: 1024
# Planar Configuration: single image plane
for c in lzw zip packbits \
g3 g3:1d g3:2d g3:1d:fill g3:2d:fill \
g4 \
none; do
for bm in MM LL ; do
for f in lsb2msb msb2lsb ; do
print tiffcp -r -1 -${bm#?} -c ${c} $BW_FILE \
${DST_DIR}/compr_${c}_${f}_${bm}.tif
tiffcp -r -1 -${bm#?} -c ${c} $BW_FILE \
${DST_DIR}/compr_${c}_${f}_${bm}.tif
done
done
done
for l in 64 100 1024; do
print tiffcp -s -r ${l} -c g4 $BW_FILE ${DST_DIR}/g4_strip_${l}.tif
tiffcp -s -r ${l} -c g4 $BW_FILE ${DST_DIR}/g4_strip_${l}.tif
for w in 64 100 ; do
print tiffcp -t -w ${w} -l ${l} -c g4 $BW_FILE \
${DST_DIR}/g4_tile_${w}x${l}.tif
tiffcp -t -w ${w} -l ${l} -c g4 $BW_FILE \
${DST_DIR}/g4_tile_${w}x${l}.tif
done
done
--
Bjorn Brox, CORENA Norge AS, http://www.corena.no/
Kirkegaardsvn. 45, P.O.Box 1024, N-3601 Kongsberg, NORWAY
Phone: +47 32737435, Fax: +47 32736877, Mobile: +47 92638590