Overview

This crate supports overlaying images with 27 blend modes.

Usage

This is to be used with image crate as following:

use image::{DynamicImage, ImageBuffer, Rgba, Luma};
use image_overlay::{overlay, overlay_dyn_img, BlendMode};
 
 
let mut dest = ImageBuffer::<Rgba<u8>, Vec<u8>>::new(100, 100);
let src = ImageBuffer::<Luma<u16>, Vec<u16>>::new(100, 100);
 
overlay(&mut dest, &src, 0, 0, BlendMode::default());
 
 
let mut dest = DynamicImage::new_rgba8(100, 100);
let src = DynamicImage::new_luma8(100, 100);
 
// Do NOT use "overlay" for DynamicImage. Use "overlay_dyn_img" insted.  
overlay_dyn_img(&mut dest, &src, 0, 0, BlendMode::default());

Features

Use f32 as an intermediate representation by default. However, can perform higher-precision calculations using f64 by enabling the “f64” feature.

lib.rs:

image-overlay

This crate supports overlaying images with 27 blend modes.

Usage

This is to be used with image crate as following:

use image::{DynamicImage, ImageBuffer, Rgba, Luma};
use image_overlay::{overlay, overlay_dyn_img, BlendMode};


let mut dest = ImageBuffer::<Rgba<u8>, Vec<u8>>::new(100, 100);
let src = ImageBuffer::<Luma<u16>, Vec<u16>>::new(100, 100);

overlay(&mut dest, &src, 0, 0, BlendMode::default());


let mut dest = DynamicImage::new_rgba8(100, 100);
let src = DynamicImage::new_luma8(100, 100);

// Do NOT use "overlay" for DynamicImage. Use "overlay_dyn_img" insted.  
overlay_dyn_img(&mut dest, &src, 0, 0, BlendMode::default());

Features

Use f32 as an intermediate representation by default.
However, can perform higher-precision calculations using f64 by enabling the "f64" feature.