https://github.com/nocduro/rayon-thumbnail-example

Resize all .jpg in current directory into thumbnails using multiple threads
https://github.com/nocduro/rayon-thumbnail-example

image rayon rust

Last synced: 10 months ago
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Resize all .jpg in current directory into thumbnails using multiple threads

• Host: GitHub
• URL: https://github.com/nocduro/rayon-thumbnail-example
• Owner: nocduro
• License: mit
• Created: 2017-08-29T05:03:46.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2017-09-25T00:23:58.000Z (almost 9 years ago)
• Last Synced: 2025-01-16T12:02:26.166Z (over 1 year ago)
• Topics: image, rayon, rust
• Language: Rust
• Homepage:
• Size: 10.7 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# rayon-image-resizer

## Overview

Uses the `glob`, `image`, and `rayon` crates to resize all of the .jpg in the current directory

into a `thumbnails` folder.

## Usage

run with: `cargo run --release` with some .jpg images in the top level directory of the repository.

## Results

Test was run against 196 images from an 18MP dslr (~1GB of images). 

Used the `Nearest` resize algorithm from the `image` crate, resizing to a 300px thumbnail.

Results from i5 4670k (4 cores/threads):

* No rayon: 63.837 seconds  ~50% cpu usage 

* With rayon: 33.094 seconds  ~97% cpu usage