中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共2条，第1-2条 帮助

条数/页： 排序方式：
Lithological indicators of discontinuities in mountain soils rich in calcium carbonate in the Polish Carpathians 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2020, 卷号: 17, 期号: 5, 页码: 1084-1095
作者:  Kowalska, Joanna Beata;  Kajdas, Bartlomiej;  Zaleski, Tomasz
  |  收藏  |  浏览/下载：27/0  |  提交时间：2020/11/16
The deviation of color matching algorithm in the field of full-color LED display (EI CONFERENCE) 会议论文  OAI收割
2009 2nd International Congress on Image and Signal Processing, CISP'09, October 17, 2009 - October 19, 2009, Tianjin, China
作者:  Wang Y.;  Chen Y.;  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
In this paper  a color gamut transformation method which transformed the different color gamut into a same one has been proposed. In the transforming process  the deviation which was arose from the quantization error and the truncation error were existing. If the deviation was out of the color tolerance  the uniformity of the screen color will be deteriorated. Firstly  the color tolerance of vision was calculated by the color-difference formula. Secondly  in the full-color LED display experiments  it was analyzed that the tri -color tolerance values are respectively 2.5  2.8 and 1.3. According to the tri -color tolerance values and the color difference formula  the express of the quantization precision  gray value and the color difference was set up. Finally the gray-scale range of the color uniformity was analyzed by the collected data  it was concluded that the uniformity of the display was satisfied the requirement of the visual when the range of the gray level was [11  14]  and when the range was [1  11]  the value of the color difference was also reduced significantly. 2009 IEEE.