Patent ID: 7676104
Filing Date: 2010-03-09
Classification: G06K,G06T

Abstract:
1. An outline font compression method, comprising any one or more of: a first approximation process for approximating data representing a Bezier curve comprised in outline data by a line if a distance between a curve and a line is a value L or less; a second approximation process for approximating a Bezier curve, where a distance between a curve and a line is L or more in the first approximation process, and the distance is L′ (L′>L) or less, by two lines; and/or a third approximation process for, when a degree of curvature of the Bezier curve is close to a predefined curve pattern, approximating the Bezier curve by the pattern, when outline data of a character designed to an accuracy of a size X square is present, and a size of the character to be displayed on a screen is a size Y (Y<X) or less, wherein the outline data is read from a first outline data storage and approximated data of the Bezier curve is stored in a second outline data storage and wherein the first approximation process, the second approximation process, and the third approximation process are performed by an approximation line converter unit.