JPEG 2000 image loader.
```rust
use image::DynamicImage;
use jpeg2k::*;
fn main() {
// Load jpeg 2000 file from file.
let jp2_image = Image::from_file("./assets/example.j2k")
// Convert to a `image::DynamicImage`
let img: DynamicImage = jp2_image.try_into()?;
// Save as png file.
img.save("out.png")?;
}
```