PICTURE FILING DEVICE AND METHOD THEREOF.

摘要

The picture filing device inputs pictures corresponding to documents as multivalued data, converts the multivalued data to binary picture data and stores the binary picture data in it. Picture elements in the areas with a specific colour are extracted from an input picture, and luminance information representing monochromatic binary picture data and binary picture data specifying coloured areas are stored on different planes respectively. On the plane for the luminance information, not only black picture elements but also other picture elements to be displayed in specific colours such as red, are included. Picture elements, of a specific colour to be displayed are extracted. the extracted picture elements of the specific colour are recorded as ''Is'' on the plane of the specific colour different from the plane for the luminance data. On the colour plane only picture elements with that colour are recorded as ''I'' and other picture elements are recorded as ''Os''. When outputting, picture elements whose contents on the plane for the luminance data are ''Is'' and whose contents on the colour plane are ''Os'' are displayed in black. Picture elements whose contents on the luminance data plane are ''Is'' and whose contents on the colour plane are ''Os'' are displayed in colour.