Overview

This crate supports overlaying images with 26 (+1) 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<f32>, Vec<f32>>::new(100, 100);
let src = ImageBuffer::<Luma<u8>, Vec<u8>>::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. If you need calc with f64, please enable "f64" feature.

If you need overlay with BlendMode::Dissolve, please enable "blend_dissolve" feature.

If you need serde::Serialize/Deserialize for BlendMode, please enable "serde" feature.