Trait Encoder

pub trait Encoder<T, U, C>
where
    U: Data<Elem = T>,
    T: Copy + Clone + Num + NumAssignOps + NumCast + PartialOrd + Display + PixelBound,
    C: ColourModel,
{
    // Required method
    fn encode(&self, image: &ImageBase<U, C>) -> Vec<u8> ;

    // Provided method
    fn encode_file<P: AsRef<Path>>(
        &self,
        image: &ImageBase<U, C>,
        filename: P,
    ) -> Result<()> { ... }
}

Trait for an image encoder

Required Methods

fn encode(&self, image: &ImageBase<U, C>) -> Vec<u8>

Encode an image into a sequence of bytes for the given format

Provided Methods

fn encode_file<P: AsRef<Path>>( &self, image: &ImageBase<U, C>, filename: P, ) -> Result<()>

Encode an image saving it to the file at filename. This function shouldn’t add an extension preferring the user to do that instead.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T, U> Encoder<T, U, RGB> for PpmEncoder

where U: Data<Elem = T>, T: Copy + Clone + Num + NumAssignOps + NumCast + PartialOrd + Display + PixelBound + FromPrimitive,

Implements the encoder trait for the PpmEncoder.

The ColourModel type argument is locked to RGB - this prevents calling RGB::into::() unnecessarily which is unavoidable until trait specialisation is stabilised.