发明名称 |
Image processing apparatus, image processing method, and program product |
摘要 |
A transformation rule of color transformation in an appropriate color space is set even without advanced knowledge and know-how. A three-dimensional lookup table unit transforms color information on an input image signal on the basis of a transformation rule. A correction range calculation unit calculates a correction range in a predetermined color space on the basis of a positional relationship between source coordinates and destination coordinates in the color space. A lattice point transfer distance calculation unit calculates the transformation destination coordinates at respective points on the basis of the positional relationship between the source coordinates and the destination coordinates, and a positional relationship between coordinates at the respective points within the correction range and the source coordinates to reflect the calculated transformation destination coordinates on the transformation rule. |
申请公布号 |
US9214010(B2) |
申请公布日期 |
2015.12.15 |
申请号 |
US201213665658 |
申请日期 |
2012.10.31 |
申请人 |
Renesas Electronics Corporation |
发明人 |
Kawaguchi Hirofumi |
分类号 |
G09G5/02;G09G3/20;G06T3/00;G06T5/00;G06T7/40;H04N1/40;H04N1/60;H04N9/64;G06T1/00;H04N1/46;H04N1/62 |
主分类号 |
G09G5/02 |
代理机构 |
McGinn IP Law Group, PLLC |
代理人 |
McGinn IP Law Group, PLLC |
主权项 |
1. An image processing apparatus, comprising:
a transformation unit that transforms color information on an input image signal on the basis of a transformation rule; a correction range calculation unit that calculates a correction range in a predetermined color space on the basis of a positional relationship between source coordinates and destination coordinates in the color space; and a point-based transfer distance calculation unit that calculates transformation destination coordinates at respective points within the correction range on the basis of the positional relationship between the source coordinates and the destination coordinates, and a positional relationship between coordinates at the respective points within the correction range and the source coordinates to reflect the calculated transformation destination coordinates on the transformation rule. |
地址 |
Kawasaki-shi, Kanagawa JP |