Canon Kabushiki Kaisha

Cuong Hung Cao

Alexander Will

Sheng Wu

Thomas Benjamin Sanjay Thomas

Delilah Gloria Slack-Smith

Disclosed is a method of rendering at least one graphical object comprising a plurality of sub parts described with a page description language format, said method comprising the steps of: converting the at least one graphical object into a first edge pair and a second edge pair, wherein the first edge pair and the second edge pair are vertically separated by a scanline gap; joining the second edge pair and the first edge pair to make a corresponding new edge pair having an empty fill portion in the scanline gap; and processing the new edge pair to render the at least one graphical object.

Path tracing method

A method of rendering a graphical object (e.g.,) on a page (), is disclosed. A region of the page containing the graphical object () is marked as output incompatible based on the graphical object () being output incompatible. A bounding box comprising the marked region is determined. A proportion of a number of the regions marked as output incompatible are determined to a total number of regions in the bounding box. A further region within the bounding box is marked as output incompatible to increase the determined proportion above a threshold. The graphical object in the marked region and the further marked region is converted into an output compatible graphical object if the determined proportion is above the threshold. The output compatible graphical object is rendered.

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Revesby, Australia

Cuong Hung Cao