In case the bit map portion data stored in a bit map portion data storage unit is overlapped with the vector portion data stored in a vector portion data storage unit, the image processing apparatus operates in the following manner. When the vector portion data has a bit map palette value indicative...http://www.google.com.tw/patents/US6690491?utm_source=gb-gplus-share專利 US6690491 - Image processing apparatus for overlapping bit map data and vector data
