Abstract: In an example, a method comprises: receiving, at a raster image processor, image data representing a print job, the image data representing an area to be printed using a process color separation and an area to be printed using a spot color; producing at the raster image processor, a first rasterized image representing a layer of the print job having the process color and a second rasterized image representing a layer of the print job having the spot color; receiving at an emulator, the second rasterized image; and representing, by the emulator, the second rasterized image as a plurality of constituent process color separation layers.

Abstract: A system and method for detecting and representing a directionality of objects in an image. A system and method may process an input image to produce a set of direction-filtered images, calculate a local gradient field based on the of direction-filtered images, calculate a magnitude of a projection of a local gradient on a predefined direction and use the projection to represent a directionality of the set of objects. A system and method may calculate a local orientation angle and associate the local orientation angle with pixels in an input digital image.

Abstract: A system and method for detecting and representing a directionality of objects in an image. A system and method may process an input image to produce a set of direction-filtered images, calculate a local gradient field based on the of direction-filtered images, calculate a magnitude of a projection of a local gradient on a predefined direction and use the projection to represent a directionality of the set of objects. A system and method may calculate a local orientation angle and associate the local orientation angle with pixels in an input digital image.