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# image-tiff
[](https://github.com/image-rs/image-tiff/actions)
[](https://docs.rs/tiff)
[](https://crates.io/crates/tiff)
TIFF decoding and encoding library in pure Rust
## Supported
### Features
- Baseline spec (other than formats and tags listed below as not supported)
- Multipage
- BigTIFF
- Incremental decoding
### Formats
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.
| `PhotometricInterpretation` | UINT Format | IEEEFP Format |
| --------------------------- | --------------------------------------- | ------------------------- |
| `WhiteIsZero` | Gray(8\|16\|32\|64) | Gray(32\|64) |
| `BlackIsZero` | Gray(8\|16\|32\|64) | Gray(32\|64) |
| `RGB` | RGB(8\|16\|32\|64), RGBA(8\|16\|32\|64) | RGB(32\|64), RGBA(32\|64) |
| `RGBPalette` | | |
| `Mask` | | |
| `CMYK` | CMYK(8\|16\|32\|64) | CMYK(32\|64) |
| `YCbCr` | | |
| `CIELab` | | |
### Compressions
| | Decoding | Encoding |
| -------- | -------- | -------- |
| None | ✓ | ✓ |
| LZW | ✓ | ✓ |
| Deflate | ✓ | ✓ |
| PackBits | ✓ | ✓ |
## Not yet supported
Formats and interpretations not listed above or with empty entries are unsupported.
- Baseline tags
- `ExtraSamples`
- Extension tags
## Fuzzing
This crate uses [cargo-fuzz](https://github.com/rust-fuzz/cargo-fuzz) in order to test the image parser.
After installing it with `cargo install cargo-fuzz` on a nightly rustc, the
fuzzing harness can be run with recommended settings using
`cargo fuzz run decode_image -snone -- -timeout=5`.
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