Abstract: Disclosed is a method of printing a transformed image corresponding to a source image. The method determines at least a first scale factor to upscale the source image to generate the transformed image, the first scale factor being at a first mathematical precision. The source image is enlarged along at least one edge of said source image edges and pixel data is copied along the source image edges into the enlarged area of the enlarged source image. The method maps each pixel of the transformed image back to a corresponding pixel into the enlarged source image including the copied pixel data along the edge of the source image. The method may determine a second scale factor, the second scale factor being at a second mathematical precision, wherein each pixel of the transformed image is mapped back to a corresponding pixel in the enlarged source image using the second scale factor.

Abstract: A method of repeatedly rendering to a page a group of objects represented by edges, by identifying a first occurrence of the group in a display list by an identifier, associating the identifier with a display list representation of the group, using the identifier to determine locations on the page where the group is to be repeated, determining if the display list representation of the group is to be used to repeat the group at the locations, repeating in the display list the occurrence of the display list representation of the group, the repeated display list representations comprising (a) transformations of the starting locations of the edges making up the group, shared by each of the repeated edges, and (b) fill and level information accessed by reference associated with each of the edges.

Abstract: Disclosed is a method of printing a transformed image corresponding to a source image. The method determines at least a first scale factor to upscale the source image to generate the transformed image, the first scale factor being at a first mathematical precision. The source image is enlarged along at least one edge of said source image edges and pixel data is copied along the source image edges into the enlarged area of the enlarged source image. The method maps each pixel of the transformed image back to a corresponding pixel into the enlarged source image including the copied pixel data along the edge of the source image. The method may determine a second scale factor, the second scale factor being at a second mathematical precision, wherein each pixel of the transformed image is mapped back to a corresponding pixel in the enlarged source image using the second scale factor.

Abstract: A method of repeatedly rendering to a page a group of objects represented by edges, by identifying a first occurrence of the group in a display list by an identifier, associating the identifier with a display list representation of the group, using the identifier to determine locations on the page where the group is to be repeated, determining if the display list representation of the group is to be used to repeat the group at the locations, repeating in the display list the occurrence of the display list representation of the group, the repeated display list representations comprising (a) transformations of the starting locations of the edges making up the group, shared by each of the repeated edges, and (b) fill and level information accessed by reference associated with each of the edges.

Abstract: Methods (200), apparatuses, and computer readable storage mediums for determining a composite color for a region of overlap between a dithered object and a contone object (210) are disclosed. A reconstructed contone object is determined from the dithered object (202). Errors are corrected for (205) in the reconstructed contone color of the dithered object. The corrected contone object and the contone object are composited (206) to determine the composite color for the region of overlap.

Abstract: Methods (200), apparatuses, and computer readable storage mediums for determining a composite color for a region of overlap between a dithered object and a contone object (210) are disclosed. A reconstructed contone object is determined from the dithered object (202). Errors are corrected for (205) in the reconstructed contone color of the dithered object. The corrected contone object and the contone object are composited (206) to determine the composite color for the region of overlap.