Imagine API
Namespace

Imagine\Filter\Advanced

Border A border filter
Canvas A canvas filter
Grayscale The Grayscale filter calculates the gray-value based on RGB.
OnPixelBased The OnPixelBased takes a callable, and for each pixel, this callable is called with the image (\Imagine\Image\ImageInterface) and the current point (\Imagine\Image\Point)
RelativeResize The RelativeResize filter allows images to be resized relative to their existing dimensions.