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Image-Resizer-Rust

Image-Resizer-Rust is a command-line tool for efficiently resizing images. It supports JPEG and PNG formats, with automatic format detection and conversion.

Please note that this command-line tool is intended for personal use and is not published on Rust's docs.rs or crates.io. Therefore, it must be installed manually.

Features

  • Resize images by specifying width, height, or both
  • Maintain aspect ratio when resizing
  • Support for JPEG and PNG formats
  • Automatic format detection and conversion
  • Efficient resizing using the fast_image_resize library

Main Dependencies

  • clap: For parsing command-line arguments
  • image: For reading and writing various image formats
  • fast_image_resize: For efficient image resizing operations

Installation

To install, you need to have Rust and Cargo installed on your system. If you don't have them installed, you can get them from https://www.rust-lang.org/tools/install.

Once you have Rust and Cargo installed, follow these steps:

  1. Clone the repository:

    git clone https://github.com/idr4n/image-resizer-rust.git
    cd image-resizer-rust
    
  2. Build the project:

    cargo build --release
    
  3. The executable will be available in the target/release directory.

Usage

To use Image-Resizer-Rust, run the following command:

image-resizer-rust <input_file> [OPTIONS]

Options

  • -W, --width <WIDTH>: New width of the image. Required if --height not provided.
  • -H, --height <HEIGHT>: New height of the image. Required if --width not provided.
  • -F, --format <FORMAT>: Specify the image format (jpeg or png)
  • -o, --output <OUTPUT>: Absolute or relative path including new image name. If only a name is provided (e.g. output.jpg), then the directory of the input image will be used.

You must specify at least one of --width or --height. If only one dimension is provided, the other will be calculated to maintain the aspect ratio.

Examples

  1. Resize an image to a width of 800 pixels, maintaining the aspect ratio:

    image-resizer-rust input.jpg -W 800 -o resized.jpg
    
  2. Resize an image to a height of 600 pixels and convert it to PNG:

    image-resizer-rust input.jpg -H 600 -F png -o resized.png
    
  3. Resize an image to 1024x768 pixels:

    image-resizer-rust input.png -W 1024 -H 768 -o resized.png
    

Error Handling

The application provides informative error messages for various scenarios, such as:

  • Invalid input file format
  • Nonexistent input or output directories
  • Unsupported output formats

Development

To run tests:

cargo test

To format the code:

cargo fmt

To run linter:

cargo clippy

License

This project is licensed under the MIT License - see the LICENSE file for details.

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An image resizer CLI written in Rust

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