Struct fast_image_resize::ImageView

pub struct ImageView<'a, P>
where
    P: PixelExt,
{ /* private fields */ }

Generic immutable image view.

Implementations

impl<'a, P> ImageView<'a, P>

where P: PixelExt,

pub fn new( width: NonZeroU32, height: NonZeroU32, rows: Vec<&'a [P]> ) -> Result<Self, ImageRowsError>

pub fn from_buffer( width: NonZeroU32, height: NonZeroU32, buffer: &'a [u8] ) -> Result<Self, ImageBufferError>

pub fn from_pixels( width: NonZeroU32, height: NonZeroU32, pixels: &'a [P] ) -> Result<Self, ImageBufferError>

pub fn pixel_type(&self) -> PixelType

pub fn width(&self) -> NonZeroU32

pub fn height(&self) -> NonZeroU32

pub fn crop_box(&self) -> CropBox

pub fn set_crop_box(&mut self, crop_box: CropBox) -> Result<(), CropBoxError>

pub fn set_crop_box_to_fit_dst_size( &mut self, dst_width: NonZeroU32, dst_height: NonZeroU32, centering: Option<(f64, f64)> )

Set a crop box to resize the source image into the aspect ratio of destination image without distortions.

centering used to control the cropping position. Use (0.5, 0.5) for center cropping (e.g. if cropping the width, take 50% off of the left side, and therefore 50% off the right side). (0.0, 0.0) will crop from the top left corner (i.e. if cropping the width, take all the crop off of the right side, and if cropping the height, take all of it off the bottom). (1.0, 0.0) will crop from the bottom left corner, etc. (i.e. if cropping the width, take all the crop off the left side, and if cropping the height take none from the top, and therefore all off the bottom).

Trait Implementations

impl<'a, P> Clone for ImageView<'a, P>

where P: PixelExt + Clone,

fn clone(&self) -> ImageView<'a, P>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, P> Debug for ImageView<'a, P>

where P: PixelExt + Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<ImageView<'a, Pixel<[u16; 2], u16, 2>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U16x2>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<[u16; 3], u16, 3>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U16x3>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<[u16; 4], u16, 4>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U16x4>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<[u8; 3], u8, 3>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U8x3>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<[u8; 4], u8, 4>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U8x4>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<f32, f32, 1>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, F32>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<i32, i32, 1>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, I32>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<u16, u16, 1>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U16>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<u16, u8, 2>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U8x2>) -> Self

Converts to this type from the input type.

impl<'a> From<ImageView<'a, Pixel<u8, u8, 1>>> for DynamicImageView<'a>

fn from(view: ImageView<'a, U8>) -> Self

Converts to this type from the input type.

impl<'a, P> From<ImageViewMut<'a, P>> for ImageView<'a, P>

where P: PixelExt,

fn from(view: ImageViewMut<'a, P>) -> Self

Converts to this type from the input type.