公开(公告)号：KR1020140037477A

公开(公告)日：2014-03-27

申请号：KR1020120103658

申请日：2012-09-19

Applicant: 삼성전자주식회사 ,  울산과학기술원

Inventor： 김연진 ,  박세혁 ,  곽영신 ,  이수연

IPC: G06T5/00 ,  H04N9/64

CPC classification number: H04N9/646 ,  H04N9/643 ,  H04N9/68

Abstract: The present invention relates to a method and a device for correcting a hue and a chroma to improve image quality. A hue value and a chroma value of inputted image data are converted into a target value, and a low chroma area is set by using the converted hue and chroma values and a brightness value of the image data. When the image data is within the low chroma area, the hue value and the chroma value in the low chroma area are corrected by using the converted hue and chroma values and a boundary value of the low chroma area. [Reference numerals] (710) Input an original image signal and a converted image signal; (720) Calculate the boundary in a low chroma area; (730) Is a pixel within the boundary in the low chroma area; (740) Calculate a low chroma area processing ratio; (750) Convert color coordinate; (760) Are all pixels processed?; (AA) Start; (BB,DD) No; (CC,EE) Yes; (FF) End

Abstract translation: 本发明涉及一种用于校正色调和色度以提高图像质量的方法和装置。 输入的图像数据的色调值和色度值被转换为目标值，并且通过使用转换的色调和色度值以及图像数据的亮度值来设置低色度区域。 当图像数据在低色度区域内时，通过使用转换的色调和色度值以及低色度区域的边界值来校正低色度区域中的色调值和色度值。 （附图标记）（710）输入原始图像信号和转换后的图像信号; （720）计算低色度区域的边界; （730）是在低色度区域内的边界内的像素; （740）计算低色度区域处理比; （750）转换颜色坐标; （760）是否处理​​所有像素？ （AA）开始; （BB，DD）否; （CC，EE）是; （FF）结束