Returns a function to access pixel values by x,y
Yields pixels of an image column by column
Yields pixels of an image row by row
Returns a @ixfx/geometry/Grids.Grid based on the provided image
Returns a function that sets pixel values
Returns an object that allows get/set grid semantics on the underlying image data.
Uses 8-bit sRGB values, meaning 0..255 range for red, green, blue & opacity.
Wraps ImageData as an ixfx @ixfx/geometry.Grid type. This is useful because it's otherwise a one-dimensional array listing each rgba in turn.