Slide

openslide_rs::traits

Trait Slide 

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pub trait Slide {
    // Required methods
    fn get_bounds(&self) -> Bounds;
    fn get_level_count(&self) -> Result<u32>;
    fn get_level_dimensions(&self, level: u32) -> Result<Size>;
    fn get_level_downsample(&self, level: u32) -> Result<f64>;
    fn get_best_level_for_downsample(&self, downsample: f64) -> Result<u32>;
    fn read_image_rgba(&self, region: &Region) -> Result<RgbaImage>;
    fn read_image_rgb(&self, region: &Region) -> Result<RgbImage>;
}

Required Methods§

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fn get_bounds(&self) -> Bounds

Get properties of the whole slide image through Properties struct.

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fn get_level_count(&self) -> Result<u32>

Get the number of levels in the whole slide image.

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fn get_level_dimensions(&self, level: u32) -> Result<Size>

Get the dimensions of level 0 (the largest level).

This method returns the Size { width, height } number of pixels of the whole slide image at the specified level. Returns an error if the level is invalid

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fn get_level_downsample(&self, level: u32) -> Result<f64>

Get the downsampling factor of a given level.

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fn get_best_level_for_downsample(&self, downsample: f64) -> Result<u32>

Get the best level to use for displaying the given downsample factor.

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fn read_image_rgba(&self, region: &Region) -> Result<RgbaImage>

Copy pre-multiplied ARGB data from a whole slide image.

This function reads and decompresses a region of a whole slide image into an RgbImage

Args: offset: (x, y) coordinate (increasing downwards/to the right) of top left pixel position level: At which level to grab the region from size: (width, height) in pixels of the outputted region

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fn read_image_rgb(&self, region: &Region) -> Result<RgbImage>

Copy pre-multiplied ARGB data from an associated image.

This function reads and decompresses a region of a whole slide image into an RgbaImage

Args: offset: (x, y) coordinate (increasing downwards/to the right) of top left pixel position level: At which level to grab the region from size: (width, height) in pixels of the outputted region

Implementors§