otf-pixels-codec-tiff

TIFF for Pixels, written from scratch

crates.io | Docs | Pixels

An Open Tech Foundation project

Baseline TIFF 6.0 in strips and tiles. A tiled TIFF decodes any region on its own, so a thumbnail of a huge scan reads only the tiles it needs.

[!TIP] Building an app or a server? Use otf-pixels instead: it picks this codec from the file's bytes with its tiff feature.

Use it

Transcode row by row, without holding the image:

use otf_pixels_codec_tiff::{TiffDecoder, TiffEncoder};
use otf_pixels_core::{Decoder, Encoder, Limits};
use otf_pixels_codec_tiff::TiffLayout;

let mut decoder = TiffDecoder::new(std::fs::File::open("scan.tif")?, Limits::default())?;
let descriptor = decoder.descriptor();
let mut encoder = TiffEncoder::new().with_layout(TiffLayout::Tiles { width: 256, height: 256 })?;
let mut out = Vec::new();
encoder.write_header(&descriptor, &mut out)?;
let mut row = vec![0; descriptor.row_bytes()];
for _ in 0..descriptor.height {
    decoder.read_row(&mut row)?;
    encoder.write_row(&row, &mut out)?;
}
encoder.finish(&mut out)?;

Capabilities

API

Part of Pixels

License

Apache-2.0 — see LICENSE.