Patent ID: 6282314
Filing Date: 2001-08-28
Classification: G06K,H04N

Abstract:
An image processing method for processing multivalue image data representing an image that includes a first portion and a second portion, comprising the steps of:inputting the multivalue image data; andsequentially converting the image represented by said multivalue image data into hierarchically structured data,wherein said converting step includesa step of dividing the image into a plurality of partial areas in accordance with image data corresponding to the image, the plurality of partial areas including the first portion and the second portion, said second portion having a first subportion and a second subportion,a step of separating a sub-Partial area from said first subportion by using a threshold determined by multivalue image data included in said first subportion, anda step of separating a sub-partial area from said second subportion by using a threshold determined by multivalue image data included in said second subportion.