Raster

An image processing library for Rust.

Pre-Alpha Status

Raster is currently in pre-alpha; There will be breaking changes between versions. The API will stabilize once it reaches 0.1.0. From then on it will follow semver.

Documentation

Examples and API are here

Current Features

• blend - Combine 2 images using normal, difference, multiply, overlay and screen.
• clone - Clone an image.
• crop - Crop image with support for textual anchor points and offsets.
• equal - Compares if two images are equal.
• fill - Fill image with color.
• resize_fit - Resize an image to fit within the given width and height.
• resize_fill - Resize image to fill all the space in the given dimension.
• resize_exact - Resize image to exact dimensions ignoring aspect ratio.
• resize_exact_width - Resize image to exact width.
• resize_exact_height - Resize image to exact height.
• save - Save to raster formats JPEG, PNG, and GIF
• similarity - Compare two images to see how similar they are.
• blur - Blur image using gaussian or box.
• convolve - Apply a convolution matrix.
• sharpen - Sharpen image.
• rotate - Rotate to any arbitrary size in clockwise or counter-clockwise direction.

Checkout the docs for more info.

Core Principles

• Keep everything simple
• Stick to primitive or simple types if possible, use advance types when neccessary
• Stick to module + functions if possible, no unneccessary abstraction (eg. OOP)
• Speed over abstraction
• Make function names user-friendly by using common or simple English words
• All functions THAT CAN return an error should return the Result type, otherwise return an appropriate type

License

• MIT License

To Do List

• More examples and add pictures in docs
• Implement bicubic interpolation
• Add geometric transformations
• Add filters and convolution
• Memory and perf improvements
• Reduce dependency to image decoders/encoders