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Author	SHA1	Message	Date
Wim Pomp	a6e8ed772d	doc typo	2026-10-10 12:31:33 +02:00
Wim Pomp	9b452e93b7	- fix tiled image reading	2026-10-03 23:07:34 +02:00
Wim Pomp	96d37bb087	- use a fork of the tiff crate to open RGBPalette tiffs	2026-10-03 19:35:01 +02:00
Wim Pomp	12f16dbfdd	- ignore missing colormap	2026-10-03 16:50:04 +02:00
Wim Pomp	a8abdd2484	update README	2026-10-03 15:00:48 +02:00
Wim Pomp	934fde185a	Default missing PhotometricInterpretation to BlackIsZero	2026-10-03 14:52:07 +02:00
Aurelia Molzer	3302936b08	Merge pull request #415 from paolobarbolini/zstd-0.14 ... Upgrade zstd to 0.14	2026-09-06 18:22:06 +00:00
Paolo Barbolini	a5b9a57e09	Upgrade zstd to 0.14 ... Bumps the optional `zstd` dependency from `0.13` to `0.14` (pulls in `zstd-safe` 8.0.0 / `zstd-sys` 2.1.0). We only use `zstd::Decoder::new` for streaming decode, which is unchanged in 0.14.0, so this is a pure version bump with no code changes. Also worth noting: `zstd-safe` 8.0.0 fixes a dangling dictionary pointer reachable from safe code, and `zstd-sys` 2.1.0 no longer needs `libclang` by default. The crate stack moved from MIT to BSD-3-Clause (still permissive, compatible with our MIT).	2026-09-06 16:59:40 +02:00
Aurelia Molzer	e27f6fe00d	Merge pull request #401 from jacovdbergh/fix-tiled-border-extra-samples ... Fix: clip border tile rows when discarding extra samples	2026-08-10 18:46:22 +00:00
Aurelia Molzer	46b19cdacf	Merge pull request #407 from aarshivv/feat/old-style-lzw ... feat: decode old-style (pre-TIFF-6.0) LZW streams	2026-07-25 08:11:01 +00:00
aarshivv	c27fd94e1d	feat: decode old-style (pre-TIFF-6.0) LZW streams	2026-07-25 12:45:40 +05:30
Aurelia Molzer	f28f5fc830	Merge pull request #406 from aarshivv/feat/cielab-16bit ... feat: support 16-bit CIELab decoding	2026-07-24 10:55:17 +00:00
aarshivv	3436a2222b	feat: support 16-bit CIELab decoding	2026-07-24 13:40:56 +05:30
Aurelia Molzer	31919c7bfc	Merge pull request #386 from aarshivv/palette-cielab-transparency-lzw ... support palette expansion, CIE L*a*b*, transparency mask, and lzw end…	2026-07-24 06:14:30 +00:00
aarshivv	d0c9198016	Merge remote-tracking branch 'origin/main' into palette-cielab-transparency-lzw	2026-07-23 00:52:37 +05:30
aarshivv	8f83f0fa82	chore: address review feedback on CIELab/TransparencyMask PR	2026-07-23 00:39:19 +05:30
Sergey "Shnatsel" Davidoff	f3f9ff1244	Merge pull request #398 from Shnatsel/safe-rust-zstd-2 ... Add safe Rust zstd decoding backend	2026-07-20 00:33:05 +01:00
Aurelia Molzer	a7dda6f4b1	Merge pull request #399 from lilith/fix/clamp-extended-depth ... decoder: reconstruct extended-depth samples modulo declared bit depth (supersedes #396)	2026-07-19 22:18:33 +00:00
Lilith River	35c14f1e3c	decoder: reconstruct extended-depth samples modulo declared bit depth ... Promoted extended-depth grayscale (9-15 bits -> u16, 17-31 bits -> u32) can carry bits above the declared depth after the horizontal predictor, which reconstructs prev+delta in the promoted storage width rather than modulo 2^BitsPerSample. This underflowed `max - v` in invert_colors (the image-rs/image-tiff#396 panic in debug, wrong pixel in release) and left junk in the high bits of the non-inverted output (#396 review, @197g: "clamp the channel values in the non-inverted color case"). An n-bit predictor delta is stored in exactly n bits, i.e. modulo 2^n, so reconstruction is defined modulo 2^n as well. Since 2^n divides the u16/u32 storage modulus, masking each promoted sample with (1<<n)-1 once after the predictor yields exactly the mod-2^n value -- including legitimate wrap-arounds -- and also bounds any out-of-range sample from malformed input. invert_colors' `max - v` is then always in range, superseding the targeted saturating_sub from #396. mask_samples_to_bit_depth runs in every integer decode branch of expand_chunk; outside the extended-depth unpacking branch it is a statically provable no-op (promoted layouts, declared < storage, occur only there -- sub-byte depths keep byte-granular storage and reject the horizontal predictor, standard depths have declared == storage, and the float predictor requires IEEEFP samples that are never promoted), so the branches cannot diverge. Adds exact-pixel regression tests on hand-built TIFFs: 12/20-bit wrap-around (plain and WhiteIsZero) and a 9-31-bit encode/decode identity sweep, alongside the two fuzzer-minimized panic seeds. A saturating clamp corrupts the wrap-around cases -- 12-bit [4095, 0, 1] is stored as deltas [4095, 1, 1] and masks back to [4095, 0, 1], but saturating produced [4095, 4095, 4095] -- so the tests lock the modular semantics.	2026-07-18 16:04:42 -06:00
Aurelia Molzer	a9cf5e17b9	Merge pull request #404 from kleinicke/fix-clippy-useless-borrow ... Fix clippy 1.97 useless_borrows_in_formatting lint failing CI	2026-07-16 15:59:04 +00:00
florianandClaude Fable 5	6276defac6	Fix clippy 1.97 useless_borrows_in_formatting lint ... Rust 1.97's new clippy lint flags the redundant `&` on `self.offset` in Entry's Debug impl. CI runs clippy with -D warnings in every job, so this single pre-existing lint currently fails all PR pipelines. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-07-16 16:29:05 +02:00
jacovdbergh@gmail.com	dee0c2fb11	fix: clip border tile rows when discarding extra samples ... Tiled images with a width that is not a multiple of the tile width wrote the border tiles' horizontal padding into the next output row. Fixes #400.	2026-07-08 08:16:27 +02:00
Sergey "Shnatsel" Davidoff	11133cb1e3	upgrade zrip to 0.8.x series	2026-07-06 15:15:04 +01:00
Aurelia Molzer	8ad05b85db	Merge pull request #397 from soyosaki/lenient ... Fix: add a lenient mode for image decoder	2026-07-03 14:36:35 +00:00
陈启	4a9e1d152b	fix: resolve comments	2026-07-03 18:49:16 +08:00
陈启	1c6001ea5d	fix: resolve comments	2026-07-03 17:19:48 +08:00
Sergey "Shnatsel" Davidoff	c0043c1a84	Use zrip-decode crate instead of ruzstd	2026-06-27 12:47:51 +01:00
陈启	c7a1176381	fix: eliminate clippy errors	2026-06-22 14:13:53 +08:00
陈启	a658c09f09	feat: add lenient decoder example	2026-06-22 12:02:54 +08:00
陈启	0309349e1b	fix: add lenient mode for tiff image decoder	2026-06-22 10:59:36 +08:00
陈启	279851a9a9	fix: correct extra bits rgb test assertion based on write extra bits ... image logic	2026-06-22 10:58:42 +08:00
Aurelia Molzer	22b4c39254	Merge pull request #394 from powturns/main ... Add PhotometricInterpretation unknown tag support	2026-06-02 17:50:20 +00:00
Dustin Thomson	f11a1c5393	Add PhotometricInterpretation unknown tag support ... Provides a mechanism to support private or extension photometric interpretations (such as CFA)	2026-05-28 08:48:12 -06:00
Aurelia Molzer	c4285aea4a	Merge pull request #393 from image-rs/bench-lzw ... Fix benches/lzw.rs directory iteration	2026-05-16 15:59:17 +00:00
A. Molzer	a1426ca802	Fix benches/lzw.rs directory iteration	2026-05-16 02:28:36 +02:00
Aurelia Molzer	66e6567acc	Merge pull request #392 from image-rs/upgrade-weezl ... Upgrade weezl to 0.2	2026-05-15 22:51:46 +00:00
A. Molzer	5947d3b72e	Make newer clippy happy	2026-05-16 00:46:02 +02:00
A. Molzer	0fdf1e0502	Upgrade weezl to 0.2	2026-05-16 00:40:00 +02:00
aarshivv	9924ea2721	chore: clean clippy deprecated warn in test case	2026-04-11 20:56:42 +05:30
aarshivv	30e04f3381	chore: drop palette and LZW, add tests for CIELab and TransparencyMask	2026-04-11 20:48:40 +05:30
aarshivv	dfd0191403	support palette expansion, CIE L*a*b*, transparency mask, and lzw end marker tolerance ... Add expand_palette_to_rgb() for converting palette indices to RGB using the color map (1/2/4/8/16-bit indices, row-aligned sub-byte). Accept CIE L*a*b* (photometric=8) as Lab(8) for 8-bit 3-channel images. Re-bias a/b from signed to unsigned during expand_chunk so callers handle CIELab and ICCLab the same way. Treat TransparencyMask as grayscale instead of erroring. Handle missing LZW end-of-information code gracefully when output was already produced.	2026-04-10 23:02:15 +05:30
Aurelia Molzer	cf9eee64ad	Merge pull request #383 from lilith/chore/fuzz-dict-and-target ... chore: replace decode_image fuzz target with comprehensive decoder exerciser	2026-04-09 22:26:34 +00:00
Lilith River	a59db23341	chore: replace decode_image fuzz target with comprehensive decoder exerciser ... Replace decode_image with decode_comprehensive, which exercises per-IFD via a probe_directory helper: - Tag iteration and value parsing for every tag - SubIFD, EXIF, and GPS directory traversal via read_directory - Image metadata (dimensions, colortype, color_map, chunk info) - Layout queries (image_buffer_layout, image_chunk_buffer_layout) - Per-chunk reads at first and last indices - Full image decode via read_image Three IFD traversal strategies: - Linear iteration via next_directory (tolerates invalid intermediate IFDs) - Random-access via seek_to_directory (find_nth_ifd code path) - Image-aware random-access via seek_to_image Dictionary covers classic TIFF and BigTIFF byte order marks, and common IFD tags in both LE and BE (image geometry, strips, tiles, SubIFD, EXIF, GPS, ColorMap). Strict resource limits (512 KB decode/intermediate, 64 KB IFD). Bounded iteration (max 8 linear, max 4 seek).	2026-04-09 14:14:35 -06:00
Aurelia Molzer	e8103509fa	Merge pull request #385 from lilith/fix/colormap-shl-overflow ... fix: prevent shift overflow panic in ColorMap size validation	2026-04-09 12:25:51 +00:00
Lilith River	26b18c5184	fix: prevent shift overflow panic in ColorMap size validation ... `1usize << bits_per_sample` panics when bits_per_sample >= 64. Use checked_shl to return a LimitsExceeded error instead. Found by fuzzing decode_comprehensive with a BE TIFF containing PhotometricInterpretation=RGBPalette and BitsPerSample=83.	2026-04-09 04:46:05 -06:00
Lilith River	b0712855b1	ci: add nightly fuzz workflow (60s on push, 5min nightly)	2026-04-09 04:43:12 -06:00
Lilith River	ea6e2a8d80	feat: add decode_comprehensive fuzz target with safe metadata probing ... New fuzz target exercises TiffHeader::parse, dimensions/colortype probing, chunk-by-chunk reading, and multi-IFD iteration. Guards get_chunk_type/chunk_dimensions behind dimensions() success check to avoid documented panics on non-image IFDs.	2026-04-09 04:43:12 -06:00
Lilith River	032421634f	chore: add fuzz dictionary for TIFF ... Format-specific dictionary with LE/BE byte order marks, TIFF magic number, and common IFD tag numbers as 2-byte LE and BE pairs. Also add coverage to fuzz/.gitignore.	2026-04-09 04:43:12 -06:00
Aurelia Molzer	d760bd3442	Merge pull request #384 from image-rs/renovate-decode-iteration ... Fix decode example/fuzz with new iteration	2026-04-08 18:49:52 +00:00
A. Molzer	a70e05e51e	Fix decode example/fuzz with new iteration	2026-04-08 20:43:12 +02:00