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Lilith River c3977c4513 test: expand test suite to 74 images with libtiff reference decoder 
Add 19 new libtiff-generated test images and a reference decoder
(verify_seq_tiff.c) that independently verifies all checksums using
libtiff's own read path, giving three-way agreement:
  libtiff writer → libtiff reader → image-tiff reader

New coverage:
- Standard sub-byte: 1-bit, 2-bit, 4-bit grayscale (BIZ + WIZ)
- Multi-strip: RowsPerStrip=4 (gray 8/16, RGB 8)
- Tiled + compressed: LZW and Deflate tiles
- Float predictor: f32/f64 + Deflate + predictor=3
- Unassociated alpha: RGBA 8-bit with EXTRASAMPLE_UNASSALPHA
- Sub-byte RGB: 5-bit and 7-bit contiguous
- Signed RGB: i8 and i16 (3-channel, decoded as Multiband)
- Float f64 RGB
- Tiled BigTIFF

verify_seq_tiff.c: reads each TIFF with libtiff, computes matching
checksums (handling packed sub-byte, unpacked extended, float, signed),
and verifies 68/68 cases pass.

Total: 74 test images (66.8 KB), 317 tests all passing.
2026-03-10 06:02:19 -06:00
..
bigtiff
fix: Big tiff decoding and add tests
2020-07-24 00:47:14 +02:00
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
seq-1c-1b-miniswhite.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-1b.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-2b.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-3b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-3b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-4b-miniswhite.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-4b-palette.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-4b.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-5b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-5b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-6b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-7b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-7b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-8b-bigendian.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-bigtiff.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-deflate.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-lzw-hpredict.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-lzw.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-multipage.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-multistrip.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-8b-packbits.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-palette.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-8b-tiled-bigtiff.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-8b-tiled-deflate.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-8b-tiled-lzw.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-8b-tiled.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-10b-hpredict.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-10b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-10b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-12b-hpredict.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-12b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-12b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-14b-hpredict.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-14b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-14b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-16b-bigendian.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-16b-deflate.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-16b-lzw.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-16b-multistrip.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-16b-tiled.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-24b-hpredict.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-24b-miniswhite.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-24b.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-1c-32f-deflate-fpredict.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-32f.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-64f-deflate-fpredict.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-1c-64f.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-i8.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-i16.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-1c-i32.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-5b-contig.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-3c-7b-contig.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-3c-8b-bigendian.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-8b-lzw.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-8b-multistrip.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-3c-8b-tiled.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-10b-contig.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-10b-planar.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-12b-contig.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-12b-planar.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-14b-contig.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-14b-planar.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-16b-bigtiff.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-24b-contig.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-24b-planar.tiff
test: regenerate seq-* test images using libtiff C API
2026-03-10 06:02:19 -06:00
seq-3c-32f.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-3c-64f.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-3c-i8.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-3c-i16.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-4c-8b-cmyk.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-4c-8b-rgba-unassoc.tiff
test: expand test suite to 74 images with libtiff reference decoder
2026-03-10 06:02:19 -06:00
seq-4c-8b-rgba.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-4c-16b-cmyk.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
seq-4c-16b-rgba.tiff
test: add 28 format-variant test images covering compression, tiled, BigTIFF, float, signed, CMYK, palette, RGBA, multi-page, and big-endian
2026-03-10 06:02:19 -06:00
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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