55 lines
2.6 KiB
Markdown
55 lines
2.6 KiB
Markdown
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# image-tiff
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[](https://github.com/image-rs/image-tiff/actions)
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[](https://docs.rs/tiff)
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[](https://crates.io/crates/tiff)
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TIFF decoding and encoding library in pure Rust
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## Supported
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### Features
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- Baseline spec (other than formats and tags listed below as not supported)
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- Multipage
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- BigTIFF
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- Incremental decoding
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### Formats
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This table lists photometric interpretations and sample formats which are supported for encoding and decoding. The entries are `ColorType` variants for which sample bit depths are supported. Only samples where all bit depths are equal are currently supported. For example, `RGB(8)` means that the bit depth [8, 8, 8] is supported and will be interpreted as an 8 bit per channel RGB color type.
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| `PhotometricInterpretation` | UINT Format | IEEEFP Format |
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| --------------------------- | --------------------------------------- | ------------------------- |
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| `WhiteIsZero` | Gray(8\|16\|32\|64) | Gray(32\|64) |
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| `BlackIsZero` | Gray(8\|16\|32\|64) | Gray(32\|64) |
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| `RGB` | RGB(8\|16\|32\|64), RGBA(8\|16\|32\|64) | RGB(32\|64), RGBA(32\|64) |
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| `RGBPalette` | | |
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| `Mask` | | |
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| `CMYK` | CMYK(8\|16\|32\|64) | CMYK(32\|64) |
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| `YCbCr` | | |
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| `CIELab` | | |
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### Compressions
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| | Decoding | Encoding |
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| -------- | -------- | -------- |
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| None | ✓ | ✓ |
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| LZW | ✓ | ✓ |
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| Deflate | ✓ | ✓ |
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| PackBits | ✓ | ✓ |
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## Not yet supported
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Formats and interpretations not listed above or with empty entries are unsupported.
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- Baseline tags
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- `ExtraSamples`
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- Extension tags
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## Fuzzing
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This crate uses [cargo-fuzz](https://github.com/rust-fuzz/cargo-fuzz) in order to test the image parser.
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After installing it with `cargo install cargo-fuzz` on a nightly rustc, the
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fuzzing harness can be run with recommended settings using
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`cargo fuzz run decode_image -snone -- -timeout=5`.
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