Buchanan Ingersoll & Rooney PC
Area determination method, image compression method, image compression apparatus, and recording medium
First, a binary image is generated by binarizing an image. Next, a binary pixel ratio, that is a ratio of a binary pixel quantity that is a quantity of dotted pixels included in a specific area of the binary image to a total quantity of pixels included in the specific area of the binary image, is found. Then, a thin-line image is generated by performing a line-thinning process on the specific area. After that, a thin-line pixel ratio that is a ratio of the quantity of dotted pixels included in the generated thin-line image to the binary pixel quantity is found, and the specific area is determined to be a map area or a photograph area based on the calculated binary pixel ratio and the calculated thin-line pixel ratio.
Konica Minolta Business Technologies, Inc.
H G H
H04N G06V H04N
inventional inventional inventional
Osamu Toshihiro
Tamura Mori