A library for encoding arbitrary data into images, a tecnique also known as steganography.
This is the foundation for the seagul cli application.
Read an image and resave it with some verses encoded into it, using the last 2 bits on the blue channel of each pixel to encode them
```rust let encoderesult = super::ImageEncoder::from("source.png") .setusenlsb(2) .setusechannel(RgbChannel::Blue) .encode_data( b" Midway upon the journey of our life I found myself within a forest dark, For the straightforward pathway had been lost. Ah me! how hard a thing it is to say What was this forest savage, rough, and stern, Which in the very thought renews the fear. So bitter is it, death is little more; But of the good to treat, which there I found, Speak will I of the other things I saw there. I cannot well repeat how there I entered, So full was I of slumber at the moment In which I had abandoned the true way.", );
assert!(encoderesult.isok(), "Encoding failed");
encode_result .unwrap() .save("encoded.png", ImageFormat::Png) .expect("Could not create output file"); ```
```rust let decoded = ImageDecoder::from("encoded.png") .setusenlsb(2) .setusechannel(RgbChannel::Blue) .untilmarker(Some(b"way.")) // <- If you know how the message ends .decode();
assert!(decoded.is_ok());
let decoded = decoded.unwrap().as_raw();
println!("Raw decoded:\n{}", decoded_string); ```
While almost every major image format is supported as input, at the moment only PNG and BMP are supported as output formats. JPEG and other formats support is planned.