Cut mask preparation method and apparatus.

摘要

In a cut mask preparation method of displayed image on a screen of display means to prepare a cutting mask, an area lying across a real region and a background region is designated as a training area (101), for picture elements in which area a YMC three plate histogram (102) is prepared to determine a threshold through discrimination analysis (103). A plate among the three plates, which has a maximum estimating function used upon the threshold determination is used and binary-coded with said threshold (104) to prepare a mask for a picture element included in one between the binary-coded values.