issuenateandClaude Opus 5.5 cc425d0cea TIFF: invert WhiteIsZero gray once, not twice ...

A WhiteIsZero (PhotometricInterpretation 0) gray TIFF opened as a negative at
every bit depth. The `tiff` crate (0.11) already inverts those samples as it
reads them, for every layout it accepts, and refuses the WhiteIsZero layouts it
can't invert; the decoder here then inverted them a second time. WhiteIsZero is
common in scanner and fax output, and CCITT fax images use it by definition.

The second inversion is removed. The new test builds 8- and 16-bit WhiteIsZero
and BlackIsZero strips in code and fails without the fix (the lowest sample
came out black instead of white).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-08 14:26:27 +02:00

..

convert.rs

CI: clean under clippy 1.99 (as_chunks for constant chunk sizes, ? in export resize parsing)

2026-10-04 11:53:43 -04:00

encode.rs

CI: clean under clippy 1.99 (as_chunks for constant chunk sizes, ? in export resize parsing)

2026-10-04 11:53:43 -04:00

exif.rs

M1.1: lightcraft-codecs decode/encode, ICC, sniffing

2026-09-30 11:30:26 -04:00

icc.rs

CI: clean under clippy 1.99 (as_chunks for constant chunk sizes, ? in export resize parsing)

2026-10-04 11:53:43 -04:00

jpeg_par.rs

Never crash: codecs and catalog free of panicking calls

2026-10-04 12:18:11 -04:00

jpeg.rs

CI: clean under clippy 1.99 (as_chunks for constant chunk sizes, ? in export resize parsing)

2026-10-04 11:53:43 -04:00

jxl.rs

M1.1: lightcraft-codecs decode/encode, ICC, sniffing

2026-09-30 11:30:26 -04:00

lib.rs

Codecs: bound thumbnail fallback decodes and WebP metadata allocations

2026-10-07 18:49:59 -04:00

other.rs

M1.1: lightcraft-codecs decode/encode, ICC, sniffing

2026-09-30 11:30:26 -04:00

png_codec.rs

CI: clean under clippy 1.99 (as_chunks for constant chunk sizes, ? in export resize parsing)

2026-10-04 11:53:43 -04:00

psd.rs

M1.1: lightcraft-codecs decode/encode, ICC, sniffing

2026-09-30 11:30:26 -04:00

sniff.rs

LR-IMP-FORMATS: decode downsized Sony lossless ARWs

2026-10-07 22:36:00 +05:30

space.rs

M1.1: lightcraft-codecs decode/encode, ICC, sniffing

2026-09-30 11:30:26 -04:00

tiff_codec.rs

TIFF: invert WhiteIsZero gray once, not twice

2026-10-08 14:26:27 +02:00

webp.rs

Codecs: bound thumbnail fallback decodes and WebP metadata allocations

2026-10-07 18:49:59 -04:00