Canon Kabushiki Kaisha

Christian Bruwer

Giles Anderson Puckett

David Karlov

Stuart James Warren

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.

Method for printing an upscaled image

A method of generating an attribute map for processing an image. An image encoded into a plurality of segments is received. Each segment is characterized by a position within a base region associated with the image and is encoded according to a corresponding encoding format. A segment from the plurality of segments is decoded into a sub-image. The sub-image is associated with a combination operation and an attribute value derived based on at least one of a segment decoding format and a segment encoding format. The combination operation determines a process of combining the sub-image with the underlying base region. An information-carrying pixel value in the sub-image is determined based on the sub-image pixel content and the attribute value associated with the sub-image. The attribute map for processing the image is generated using the attribute value associated with the sub-image for at least one pixel of the attribute map.

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Westmead, Australia

Christian Bruwer