Trait RustImage

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pub trait RustImage: Sized {
Show 14 methods    // Required methods
    fn empty() -> Self;
    fn is_empty(&self) -> bool;
    fn from_path(path: &str) -> Result<Self>;
    fn from_bytes(bytes: &[u8]) -> Result<Self>;
    fn from_dynamic_image(image: DynamicImage) -> Self;
    fn get_size(&self) -> (u32, u32);
    fn thumbnail(&self, width: u32, height: u32) -> Result<Self>;
    fn resize(
        &self,
        width: u32,
        height: u32,
        filter: FilterType,
    ) -> Result<Self>;
    fn encode_image(
        &self,
        target_color_type: ColorType,
        format: ImageFormat,
    ) -> Result<RustImageBuffer>;
    fn to_jpeg(&self) -> Result<RustImageBuffer>;
    fn to_png(&self) -> Result<RustImageBuffer>;
    fn save_to_path(&self, path: &str) -> Result<()>;
    fn get_dynamic_image(&self) -> Result<DynamicImage>;
    fn to_rgba8(&self) -> Result<RgbaImage>;
}

Required Methods§

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fn empty() -> Self

create an empty image

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fn is_empty(&self) -> bool

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fn from_path(path: &str) -> Result<Self>

Read image from file path

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fn from_bytes(bytes: &[u8]) -> Result<Self>

Create a new image from a byte slice

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fn from_dynamic_image(image: DynamicImage) -> Self

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fn get_size(&self) -> (u32, u32)

width and height

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fn thumbnail(&self, width: u32, height: u32) -> Result<Self>

Scale this image down to fit within a specific size. Returns a new image. The image’s aspect ratio is preserved. The image is scaled to the maximum possible size that fits within the bounds specified by nwidth and nheight.

This method uses a fast integer algorithm where each source pixel contributes to exactly one target pixel. May give aliasing artifacts if new size is close to old size.

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