Struct Header

impl Header

const fn try_new(width: u32, height: u32, channels: Channels, colorspace: ColorSpace) -> Result<Self>

Creates a new header and validates image dimensions.

const fn with_channels(self, channels: Channels) -> Self

Creates a new header with modified channels.

const fn with_colorspace(self, colorspace: ColorSpace) -> Self

Creates a new header with modified color space.

const fn n_pixels(&self) -> usize

Returns a number of pixels in the image.

const fn n_bytes(&self) -> usize

Returns the total number of bytes in the raw pixel array.

This may come useful when pre-allocating a buffer to decode the image into.

fn encode_max_len(&self) -> usize

The maximum number of bytes the encoded image will take.

Can be used to pre-allocate the buffer to encode the image into.