Image DCT

Simple Rust implementation for getting the DCT coefficients of an image.

Dependent on image, rustdct crates.

Install

bash cargo add image_dct

Usage

```rust use imagedct::imageto_dct::ImageDct;

fn main() { // load image as a RGB ImageBuffer let img = image::open("image.png").unwrap().to_rgb8();

// Create the ImageDct object from ImageBuffer
let mut image_dct = ImageDct::new(img);

// Compute the DCT of the image then compute the inverse DCT on the coefficients
image_dct.compute_dct();
image_dct.compute_idct();

// Reconstruct it back into an RGB ImageBuffer
let reconstructed_image = image_dct.reconstructe_image();

// Save the reconstructed image into a PNG
image::save_buffer(
    "./output.png",
    &reconstructed_image,
    image_dct.width() as u32,
    image_dct.height(),
    image::ColorType::Rgb8,
)
.unwrap();

} ```