公开(公告)号：US20160044210A1

公开(公告)日：2016-02-11

申请号：US14780173

申请日：2013-08-29

Applicant: EIZO CORPORATION

Inventor： Tetsuya IMAFUKU ,  Kensuke NAGASHIMA ,  Atsuyoshi DEYAMA

IPC: H04N1/60 ,  G06T7/40 ,  G06T7/00

CPC classification number: H04N1/6027 ,  G06T7/11 ,  G06T7/90 ,  G06T2207/10024 ,  H04N1/6019

Abstract: Provided are a color conversion method, gradation value correction device, computer program, and display device that can reproduce small gradation changes between lattice points, as well as can reduce accuracy degradation caused by interpolation. Dividing one of input gradations and output gradations of gradation characteristics, indicating input/output gradation characteristics reproduced in a second conversion unit, into gradation segments having predetermined gradation intervals. Then, correcting each of the gradation values of the other gradations of the gradation characteristics so that gradation intervals of the other gradations become intervals corresponding to the predetermined gradation intervals. The first conversion unit then converts the gradation values of an image using the corrected gradation values.

Abstract translation: 提供了可以在格点之间再现小的灰度变化的颜色转换方法，灰度值校正装置，计算机程序和显示装置，并且可以降低由插值引起的精度劣化。 将在第二转换单元中再现的指示输入/输出灰度特性的灰度特性的输入灰度和输出灰度中的一个分割成具有预定灰度间隔的灰度片段。 然后，校正灰度特性的其他灰度等级的每个灰度值，使得其他灰度的灰度间隔变为与预定灰度间隔相对应的间隔。 然后，第一转换单元使用校正的灰度值转换图像的灰度值。