[−][src]Trait ndarray_vision::core::traits::PixelBound

pub trait PixelBound {
    fn min_pixel() -> Self;
    fn max_pixel() -> Self;
    fn discrete_levels() -> Option<usize>;
}

When working with pixel data types may have odd bitdepths or not use the full range of the value. We can't assume every image with u8 ranges from [0..255]. Additionally, floating point representations of pixels normally range from [0.0..1.0]. PixelBound is an attempt to solve this issue.

Unfortunately, type aliases don't really create new types so if you wanted to create a pixel with a reduced bound you'd have to create something like:

struct LimitedU8(u8);
impl PixelBound for LimitedU8 {
    fn min_pixel() -> Self {
        LimitedU8(16u8)
    }
     
    fn max_pixel() -> Self {
        LimitedU8(160u8)
    }
}

And then implement the required numerical traits just calling the
corresponding methods in `u8`

Required methods

`fn min_pixel() -> Self`

The minimum value a pixel can take

`fn max_pixel() -> Self`

The maximum value a pixel can take

`fn discrete_levels() -> Option<usize>`

Returns the number of discrete levels. This is an option because it's deemed meaningless for types like floats which suffer from rounding issues

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Implementations on Foreign Types

`impl PixelBound for f64`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for f32`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for u8`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for u16`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for u32`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for u64`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for u128`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for i8`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for i16`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for i32`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for i64`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

`impl PixelBound for i128`[src]

`fn min_pixel() -> Self`[src]

`fn max_pixel() -> Self`[src]

`fn discrete_levels() -> Option<usize>`[src]

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Implementors

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