PARAMETRIC METHODS FOR GAMMA AND INVERSE GAMMA-CORRECTION, WITH EXTENSIONS TO HALF-TONING

被引：6

作者：

STANISLAW, H ^{[1
]}

OLZAK, LA ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024

来源：

BEHAVIOR RESEARCH METHODS INSTRUMENTS & COMPUTERS | 1990年 / 22卷 / 04期

关键词：

D O I：

10.3758/BF03203182

中图分类号：

B841 [心理学研究方法];

学科分类号：

040201 ;

摘要：

Users of computer-controlled color video systems rely on procedures called gamma and inverse gamma correction to translate between system-specific descriptions of their stimuli and perceptually meaningful measures that are independent of the video system. These corrections are usually performed using a tabular approach. In the present paper, we detail problems with the tabular approach, suggest a parametric alternative, and describe programs for estimating parameter values. The parametric approach is then illustrated by using gamma and inverse gamma correction to find the best pair of colors for a halftone stimulus (i.e., one combining two different colors). © 1990 Psychonomic Society, Inc.

引用

页码：402 / 408

页数：7