基本信息:
- 专利标题: A METHOD FOR REVERSIBLE COLOR TRANSFORM USING CANONICAL SIGNED DIGIT
- 专利标题(中):一种使用经典符号数字进行反色变换的方法
- 申请号:PCT/KR2008/006342 申请日:2008-10-28
- 公开(公告)号:WO2010018891A1 公开(公告)日:2010-02-18
- 发明人: LEE, Byung-Uk , YANG, Se Jung
- 申请人: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION , LEE, Byung-Uk , YANG, Se Jung
- 申请人地址: Ewha University 11-1 Daehyeon-dong Seodaemun-gu Seoul 120-750 KR
- 专利权人: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION,LEE, Byung-Uk,YANG, Se Jung
- 当前专利权人: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION,LEE, Byung-Uk,YANG, Se Jung
- 当前专利权人地址: Ewha University 11-1 Daehyeon-dong Seodaemun-gu Seoul 120-750 KR
- 代理机构: TAEDONG INTERNATIONAL PATENT LAW FIRM
- 优先权: KR10-2008-0079109 20080812
- 主分类号: H04N9/67
- IPC分类号: H04N9/67
摘要:
A method for reversible color transform using a canonical signed digit (CSD) is disclosed. The method includes (1) transforming respective color coordinate coefficients to CSD numbers; (2) extracting a common pattern from the CSD numbers and previously performing computation with respect to the common pattern; and (3) performing a reversible color transform, using the previously computed result. The method can enhance the speed of invertible integer color transform as a canonical signed digit (CSD) system and a common pattern technique are applied to the invertible integer color transform which can precisely implement an inverse transform matrix without causing a rounding-off error according to integerization.
摘要(中):
公开了一种使用规范有符号数字(CSD)进行可逆变色的方法。 该方法包括(1)将各个色坐标系变换为CSD数; (2)从CSD号提取公共图案,并且先前对公共图案执行计算; 和(3)使用先前计算的结果执行可逆颜色变换。 该方法可以提高可逆整数颜色变换的速度作为规范的有符号数字(CSD)系统,并且通用图案技术应用于可逆整数颜色变换,可以精确地实现逆变换矩阵,而不会导致根据 integerization。