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Lilith River 6c8f8abc71 test: add CCITT Group 3 (Fax3) test images with libtiff cross-validation 
Three 16x16 bilevel fax3 test images covering the key Group 3 variants:
- seq-1c-1b-fax3: basic G3, no fill bits, MSB-first fill order
- seq-1c-1b-fax3-fillbits: G3 with T4Options fill bits (byte-aligned EOLs)
- seq-1c-1b-fax3-lsb: G3 with FillOrder=2 (LSB-first)

All use MinIsWhite photometric with inverted sequential pattern, producing
the same decoded CRC32 hash (71f6a21a) as the uncompressed 1-bit images.
Cross-validated: libtiff writes the images, both libtiff and image-tiff
read them back and agree on the decoded data.
2026-03-12 00:52:03 -06:00
..
bigtiff
fix: Big tiff decoding and add tests
2020-07-24 00:47:14 +02:00
seq
test: add CCITT Group 3 (Fax3) test images with libtiff cross-validation
2026-03-12 00:52:03 -06:00
12bit.cropped.rgb.tiff
Add tests for exotic 12-bit sample images
2019-12-16 18:53:44 +00:00
12bit.cropped.tiff
Add tests for exotic 12-bit sample images
2019-12-16 18:53:44 +00:00
big_g4.tif
Upgrade Group4Reader dimensions from u16 to u32
2026-03-03 10:50:27 +00:00
cmyk-3c-8b.tiff
Add decode test for CMYK(8)
2019-12-21 15:57:24 +00:00
cmyk-3c-16b.tiff
Add support for CMYK(16|32|64) decoding
2019-12-21 15:57:24 +00:00
cmyk-3c-32b-float.tiff
Add support for IEEEFP RGB/RGBA/CMYK(32) decoding
2020-02-10 13:21:13 +00:00
cmyk-4c-8b.tiff
Decode with ExtraSamples
2025-11-12 01:23:12 +01:00
COPYRIGHT
Add some integration tests
2018-06-17 16:19:39 +02:00
extra_bits_gray_8b.tiff
Encoding of extra samples, roundtrip test
2025-11-12 01:41:38 +01:00
extra_bits_rgb_8b.tiff
Encoding of extra samples, roundtrip test
2025-11-12 01:41:38 +01:00
fax4.tiff
CCITT group 4 (Fax4) decoding support
2025-08-30 23:20:41 +02:00
gradient-1c-32b-float.tiff
Add support for IEEEFP Gray(32) decoding
2020-02-06 18:40:41 +00:00
gradient-1c-32b.tiff
Support 32-bit grayscale decoding
2019-12-10 20:18:23 +00:00
gradient-1c-64b-float.tiff
Add support for IEEEFP Gray/RGB/RGBA/CMYK(64) decoding
2020-02-10 13:21:16 +00:00
gradient-1c-64b.tiff
Support 64-bit grayscale decoding
2019-12-10 20:18:53 +00:00
gradient-3c-32b-float.tiff
Add support for IEEEFP RGB/RGBA/CMYK(32) decoding
2020-02-10 13:21:13 +00:00
gradient-3c-32b.tiff
Support 32-bit rgb and rgba decoding
2019-12-10 20:18:51 +00:00
gradient-3c-64b.tiff
Support 64-bit rgb and rgba decoding
2019-12-10 20:18:53 +00:00
hpredict-1c-12b.tiff
fix: handle WhiteIsZero for extended bit depths, add comprehensive tests
2026-03-10 06:02:19 -06:00
imagemagick_group4.tiff
Verify WhiteIsZero invert, add Gray(1) color type
2025-09-01 00:25:48 +02:00
int8_rgb.tif
Added tests and finalized i8 support
2020-12-13 12:00:48 +02:00
int8.tif
Added tests and finalized i8 support
2020-12-13 12:00:48 +02:00
int16_rgb.tif
Added int16 tests
2020-12-08 13:42:08 +02:00
int16_zstd.tif
Support ZSTD compression method for reading (#256)
2024-12-20 12:50:34 -08:00
int16.tif
Added int16 tests
2020-12-08 13:42:08 +02:00
issue_69_lzw.tiff
Tests: add regression test for issue 69
2020-02-09 18:37:16 +00:00
issue_69_packbits.tiff
Tests: add regression test for issue 69
2020-02-09 18:37:16 +00:00
logluv-3c-16b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
minisblack-1c-3b.tiff
fix: handle WhiteIsZero for non-standard sub-byte depths (3/5/6/7-bit)
2026-03-10 06:02:19 -06:00
minisblack-1c-5b.tiff
fix: handle WhiteIsZero for non-standard sub-byte depths (3/5/6/7-bit)
2026-03-10 06:02:19 -06:00
minisblack-1c-7b.tiff
fix: handle WhiteIsZero for non-standard sub-byte depths (3/5/6/7-bit)
2026-03-10 06:02:19 -06:00
minisblack-1c-8b.pgm
Add some integration tests
2018-06-17 16:19:39 +02:00
minisblack-1c-8b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
minisblack-1c-16b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
minisblack-1c-i8b.tiff
Add SignedByte and SignedShort enum variants (#234)
2024-07-21 20:37:25 -07:00
minisblack-1c-i16b.tiff
Add SignedByte and SignedShort enum variants (#234)
2024-07-21 20:37:25 -07:00
minisblack-2c-8b-alpha.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
miniswhite-1c-1b.pbm
Add some integration tests
2018-06-17 16:19:39 +02:00
miniswhite-1c-1b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
miniswhite-1c-3b.tiff
fix: handle WhiteIsZero for non-standard sub-byte depths (3/5/6/7-bit)
2026-03-10 06:02:19 -06:00
miniswhite-1c-6b.tiff
fix: handle WhiteIsZero for non-standard sub-byte depths (3/5/6/7-bit)
2026-03-10 06:02:19 -06:00
miniswhite-1c-12b.tiff
fix: handle WhiteIsZero for extended bit depths, add comprehensive tests
2026-03-10 06:02:19 -06:00
no_rows_per_strip.tiff
Fix the mandrill.tiff regression (#145)
2021-06-17 09:22:07 -04:00
palette-1c-1b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
palette-1c-4b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
palette-1c-8b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
planar-rgb-u8.tif
Add basic support for planar configuration
2023-01-12 23:34:31 +01:00
predictor-3-gray-f32.tif
Support floating point predictor (predictor 3)
2022-06-22 20:14:25 -07:00
predictor-3-rgb-f32.tif
Support floating point predictor (predictor 3)
2022-06-22 20:14:25 -07:00
quad-lzw-compat.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
quad-tile.jpg.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
random-fp16-pred2.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
random-fp16-pred3.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
random-fp16.pgm
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
random-fp16.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
README.txt
Add some integration tests
2018-06-17 16:19:39 +02:00
rgb-3c-8b.ppm
Add some integration tests
2018-06-17 16:19:39 +02:00
rgb-3c-8b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
rgb-3c-16b.tiff
Add some integration tests
2018-06-17 16:19:39 +02:00
single-black-fp16.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
tiled-cmyk-i8.tif
changed test photos to avoid coyright, added whiteiszero test
2021-04-06 13:58:33 +02:00
tiled-gray-i1.tif
Fix 1bpp image decoding and add a test image (#252)
2024-10-31 20:21:02 -07:00
tiled-jpeg-rgb-u8.tif
changed test photos to avoid coyright, added whiteiszero test
2021-04-06 13:58:33 +02:00
tiled-jpeg-ycbcr.tif
added round trip test
2023-01-05 09:34:54 +01:00
tiled-oversize-gray-i8.tif
changed test photos to avoid coyright, added whiteiszero test
2021-04-06 13:58:33 +02:00
tiled-rect-rgb-u8.tif
changed test photos to avoid coyright, added whiteiszero test
2021-04-06 13:58:33 +02:00
tiled-rgb-u8.tif
incremental tile decoding, refactoring
2021-04-12 15:09:39 +02:00
white-fp16-pred2.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
white-fp16-pred3.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00
white-fp16.tiff
Add FP16 support (#257)
2025-02-04 19:12:01 -08:00

README.txt 

The test files in this directory mostly have dimension 157x151.
The naming convention is

   photometric-channels-bits.tiff

minisblack-1c-16b.tiff
minisblack-1c-8b.tiff
miniswhite-1c-1b.tiff
palette-1c-1b.tiff
palette-1c-4b.tiff
palette-1c-8b.tiff
rgb-3c-16b.tiff
rgb-3c-8b.tiff

logluv-3c-16b.tiff: logluv compression/photometric interp
minisblack-2c-8b-alpha.tiff: grey+alpha

BMP files (anchient BMPv2 since v3 does not work):

  palette-1c-8b.bmp
  rgb-3c-8b.bmp

GIF files (anchient GIF '87 since modern GIF does not work):
  palette-1c-8b.gif

PNM files:
  minisblack-1c-8b.pgm
  miniswhite-1c-1b.pbm
  rgb-3c-8b.ppm
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