Trait exr::image::crop::CropWhere

pub trait CropWhere<Sample>: Sized {
    type Cropped;
    fn crop_where(
        self, 
        discard_if: impl Fn(Sample) -> bool
    ) -> CropResult<Self::Cropped, Self>;
    fn crop_where_eq(
        self, 
        discard_color: impl Into<Sample>
    ) -> CropResult<Self::Cropped, Self>
    where
        Sample: PartialEq;
    fn crop_nowhere(self) -> Self::Cropped;
}

Crop away unwanted pixels from the border if they match the specified rule.

Associated Types

type Cropped

The type of the cropped image (probably the same as the original image).

Required methods

fn crop_where(
    self,
    discard_if: impl Fn(Sample) -> bool
) -> CropResult<Self::Cropped, Self>

Crop away unwanted pixels from the border if they match the specified rule. Does not reduce allocation size of the current image, but instead only adjust a few boundary numbers. Use reallocate_cropped() on the return value to actually reduce the memory footprint.

fn crop_where_eq(
    self,
    discard_color: impl Into<Sample>
) -> CropResult<Self::Cropped, Self> where
    Sample: PartialEq, 

Crop away unwanted pixels from the border if they match the specified color. If you want discard based on a rule, use crop_where with a closure instead. Does not reduce allocation size of the current image, but instead only adjust a few boundary numbers. Use reallocate_cropped() on the return value to actually reduce the memory footprint.

fn crop_nowhere(self) -> Self::Cropped

Convert this data to cropped data without discarding any pixels.

Implementors

impl<T> CropWhere<<T as InspectSample>::Sample> for T where
    T: Crop + InspectSample, 

type Cropped = <Self as Crop>::Cropped

fn crop_where(
    self,
    discard_if: impl Fn(T::Sample) -> bool
) -> CropResult<Self::Cropped, Self>

fn crop_where_eq(
    self,
    discard_color: impl Into<T::Sample>
) -> CropResult<Self::Cropped, Self> where
    T::Sample: PartialEq, 

fn crop_nowhere(self) -> Self::Cropped