Struct re_viewer_context::ImageInfo

pub struct ImageInfo {
    pub buffer_row_id: RowId,
    pub buffer: Blob,
    pub format: ImageFormat,
    pub kind: ImageKind,
}

Represents the contents of an Image, SegmentationImage or DepthImage.

Fields

buffer_row_id: RowId

The row id that contained the blob.

Can be used instead of hashing Self::buffer.

buffer: Blob

The image data, row-wise, with stride=width.

format: ImageFormat

Describes the format of Self::buffer.

kind: ImageKind

Color, Depth, or Segmentation?

Implementations

impl ImageInfo

pub fn width(&self) -> u32

pub fn height(&self) -> u32

pub fn width_height(&self) -> [u32; 2]

pub fn color_model(&self) -> ColorModel

Returns ColorModel::L for depth and segmentation images.

Currently return ColorModel::RGB for chroma-subsampled images, but this may change in the future when we add YUV support to ColorModel.

pub fn get_xyc(&self, x: u32, y: u32, channel: u32) -> Option<TensorElement>

Get the value of the element at the given index.

Return None if out-of-bounds.

pub fn to_slice<T: Pod>(&self) -> Cow<'_, [T]>

Cast the buffer to the given type.

This will never fail. If the buffer is 5 bytes long and the target type is f32, the last byte is just ignored.

Cheap in most cases, but if the input buffer is not aligned to the element type, this function will copy the data.

pub fn to_dynamic_image( &self, data_range: RangeInclusive<f32> ) -> Option<DynamicImage>

Best-effort.

u8 and u16 images are returned as is.

Other data types are remapped from the given data_range to the full u16 range, then rounded.

Returns None for invalid images (if the buffer is the wrong size).

pub fn to_rgba8_image( &self, data_range: RangeInclusive<f32> ) -> Option<RgbaImage>

See Self::to_dynamic_image.

fn to_vec_u16( &self, datatype: ChannelDatatype, data_range: RangeInclusive<f32> ) -> Vec<u16>

Remaps the given data range to u16, with rounding and clamping.

pub fn to_png(&self, data_range: RangeInclusive<f32>) -> Result<Vec<u8>>

Convert this image to an encoded PNG

Trait Implementations

impl Clone for ImageInfo

fn clone(&self) -> ImageInfo

Returns a copy of the value.

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

Performs copy-assignment from source.