公开(公告)号：US09042642B2

公开(公告)日：2015-05-26

申请号：US13632695

申请日：2012-10-01

Applicant: FUJITSU LIMITED

Inventor： Nobuyuki Kanto ,  Masayoshi Shimizu ,  Hiroyasu Yoshikawa ,  Yukio Hirai ,  Takuya Kamimura

IPC: G06K9/00 ,  H04N1/60 ,  H04N9/04

CPC classification number: H04N1/6027 ,  H04N9/045

Abstract: A determining unit determines which one of a plurality of divided areas in color distribution a value of an input image single falls within. The plurality of divided areas are defined for each of R, G, and B color components, and the determining unit determines, for each color component, which one of the plurality of divided areas the value of the input image signal falls within. An image correcting unit reads correction coefficients corresponding to the determined divided area for each color component from a correction coefficient storing unit in which correction coefficients are registered for each of the color components and each of the divided areas. The image correcting unit calculates each of R, G, and B output values of an output image signal using the correction coefficients of the individual color components read from the correction coefficient storing unit.

Abstract translation: 确定单元确定颜色分布中的多个分割区域中的哪一个是输入图像单个的值在其内的哪一个。 针对R，G和B颜色分量中的每一个分配多个分割区域，并且确定单元针对每个颜色分量确定输入图像信号的值的哪一个分割区域。 图像校正单元从校正系数存储单元中读取对于每个颜色分量所确定的分割区域的校正系数，其中针对每个颜色分量和每个分割区域登记校正系数。 图像校正单元使用从校正系数存储单元读取的各个颜色分量的校正系数来计算输出图像信号的R，G和B输出值。

公开(公告)号：US20130141611A1

公开(公告)日：2013-06-06

申请号：US13657192

申请日：2012-10-22

Applicant: Fujitsu Limited

Inventor： Yukio HIRAI ,  Masayoshi Shimizu ,  Hiroyasu Yoshikawa ,  Nobuyuki Kanto ,  Takuya Kamimura

IPC: G06T5/00 ,  H04N9/04

CPC classification number: H04N5/357 ,  G06T5/002 ,  H04N1/6033 ,  H04N9/045 ,  H04N9/67 ,  H04N17/002

Abstract: A memory unit stores as conversion information which is derived based on a correction coefficient which provides, in a predetermined allowable range from a minimum value, a sum of a norm of a difference between a color difference of a correction target color and a target color which is a target of correction of the correction target color and a correction color obtained by correcting the correction target color using the correction coefficient, and a norm of the correction coefficient to which a predetermined weight coefficient is applied. A color correcting unit converts a color of each pixel of an image captured by an image capturing unit based on the conversion information.

Abstract translation: 存储单元存储作为基于校正系数导出的转换信息，该校正系数在最小值的预定允许范围内提供校正目标色的色差和目标色的差的范数之和， 是校正目标颜色的校正目标和通过使用校正系数校正校正目标颜色而获得的校正颜色，以及应用了预定加权系数的校正系数的范数。 颜色校正单元基于转换信息来转换由图像捕获单元捕获的图像的每个像素的颜色。