Crate img_parts

img-parts

The img-parts crate provides a low level api for reading and writing containers from various image formats.

It currently supports Jpeg, Png and RIFF (with some helper functions for WebP).

Reading and writing raw ICCP and EXIF metadata

use std::fs::{self, File};

use img_parts::jpeg::Jpeg;
use img_parts::{ImageEXIF, ImageICC};

let input = fs::read("img.jpg")?;
let output = File::create("out.jpg")?;

let mut jpeg = Jpeg::from_bytes(input.into())?;
let icc_profile = jpeg.icc_profile();
let exif_metadata = jpeg.exif();

jpeg.set_icc_profile(Some(another_icc_profile.into()));
jpeg.set_exif(Some(new_exif_metadata.into()));
jpeg.encoder().write_to(output)?;

Modifying chunks

use std::fs::{self, File};

use img_parts::jpeg::{markers, Jpeg, JpegSegment};
use img_parts::Bytes;

let input = fs::read("img.jpg")?;
let output = File::create("out.jpg")?;

let mut jpeg = Jpeg::from_bytes(input.into())?;

let comment = Bytes::from("Hello, I'm writing a comment!");
let comment_segment = JpegSegment::new_with_contents(markers::COM, comment);
jpeg.segments_mut().insert(1, comment_segment);

jpeg.encoder().write_to(output)?;

Modules

jpeg

png

riff

vp8

webp

Structs

Bytes

A cheaply cloneable and sliceable chunk of contiguous memory.

ImageEncoder

An encoder for and image container or for an image chunk

ImageEncoderReader

A reader for ImageEncoder that will never fail

Enums

DynImage

An enum wrapping the common functions shared by the different image formats

Error

The Errors that may occur when processing an image.

Traits

ImageEXIF

Trait to read and write the raw EXIF metadata for an image

ImageICC

Trait to read and write the raw ICC Profile for an image

Type Aliases

Result