Canon U.S.A., Inc. IP Division
Determining transparent fills based on a reference background colour
Disclosed is a method of generating an electronic document having an enclosed region with a fill color. The method receives a digital representation of a source document, the source document containing an enclosed region and at least one corresponding background region, the enclosed region overlapping at least a portion of the background region. A fill color is determined for the enclosed region from the digital representation as is a reference background color for the enclosed region from the corresponding background region of the digital representation. The method assigns a transparent fill color to the enclosed region based on a comparison of the determined fill color for the enclosed region with the reference background color and stores enclosed region with the transparent fill color to generate an electronic document.
Canon Kabushiki Kaisha
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G06T G06T G06T G06T H04N
additional inventional additional inventional inventional
James Austin Yu-Ling Steven Richard
Besley Chen Irrgang