公开(公告)号：EP1813922A1

公开(公告)日：2007-08-01

申请号：EP07101168.8

申请日：2007-01-25

申请人： CANON KABUSHIKI KAISHA

发明人： Sasanuma, Nobuatsu ,  Itagaki, Tomohisa ,  Hayashi, Miyoko ,  Tomita, Masami ,  Saishoji, Toshio ,  Takayama, Satoshi

IPC分类号： G01J3/46

CPC分类号： G01J3/46 ,  G01J3/462 ,  G01J3/463 ,  G01J2003/466

摘要： This invention provides a display apparatus, control method, and control program, which display hue differences and color difference values of respective patches as lists, and display the hue direction of the hue difference of each individual patch on a chromaticity diagram in an easy-to-understand manner. To accomplish this, a display method of this invention includes a specifying step of specifying a color determined by a hue difference calculated from first and second values associated with spectral reflectance characteristics, and a display step of displaying the color specified in the specifying step as a graphical object. The specified color is specified as a representative color that indicates a hue on a chromaticity diagram to which the hue difference biases.

摘要翻译： 本发明提供了一种显示装置，控制方法和控制程序，其将各个色块的色相差和色差值作为列表显示，并且在色度图上以易于使用的色度图显示每个贴片的色相差的色调方向 理解方式 为了实现这一点，本发明的显示方法包括：指定步骤，指定由根据与光谱反射率特性相关联的第一和第二值计算的色调差确定的颜色;以及显示步骤，将指定步骤中指定的颜色显示为 图形对象。 指定的颜色被指定为表示色相差偏差的色度图上的色调的代表颜色。

公开(公告)号：EP1804134A2

公开(公告)日：2007-07-04

申请号：EP06127246.4

申请日：2006-12-27

申请人： CANON KABUSHIKI KAISHA

发明人： Itagaki, Tomohisa ,  Sasanuma, Nobuatsu ,  Tomita, Masami ,  Saishoji, Toshio ,  Takayama, Satoshi ,  Hayashi, Miyoko

IPC分类号： G03G15/01

CPC分类号： G03G15/01 ,  G03G2215/0164

摘要： Color reproducibility needs to be evaluated in consideration of the influence of homogeneity in page image. Hence, a first chart is formed from an image of a uniform density of a region to be evaluated, and data associated with the spectral reflectances of plural points on the first chart are input. Based on the data obtained from the first chart, color differences between a predetermined point and other points on the first chart are calculated. When the calculated color differences fall within a permissible range of heterogeneity of colors in the region, a second chart is formed from an image corresponding to a color target, and data associated with the spectral reflectances of plural points on the second chart are input. Color differences are calculated from the data obtained from the second chart and data associated with the spectral reflectance of the color target.

摘要翻译： 考虑到页面图像中均匀性的影响，需要评估颜色重现性。 因此，从要评估的区域的均匀密度的图像形成第一图表，并且输入与第一图表上的多个点的光谱反射率相关联的数据。 基于从第一图表获得的数据，计算第一图表上的预定点与其他点之间的色差。 当计算出的色差落入该区域的颜色异质性的容许范围内时，从对应于彩色目标的图像形成第二图表，并且输入与第二图表上的多个点的光谱反射率相关联的数据。 根据从第二图表获得的数据和与彩色目标的光谱反射率相关联的数据计算色差。

公开(公告)号：EP1804134A3

公开(公告)日：2014-02-26

申请号：EP06127246.4

申请日：2006-12-27

申请人： CANON KABUSHIKI KAISHA

发明人： Itagaki, Tomohisa ,  Sasanuma, Nobuatsu ,  Tomita, Masami ,  Saishoji, Toshio ,  Takayama, Satoshi ,  Hayashi, Miyoko

IPC分类号： G03G15/01

CPC分类号： G03G15/01 ,  G03G2215/0164

摘要： Color reproducibility needs to be evaluated in consideration of the influence of homogeneity in page image. Hence, a first chart is formed from an image of a uniform density of a region to be evaluated, and data associated with the spectral reflectances of plural points on the first chart are input. Based on the data obtained from the first chart, color differences between a predetermined point and other points on the first chart are calculated. When the calculated color differences fall within a permissible range of heterogeneity of colors in the region, a second chart is formed from an image corresponding to a color target, and data associated with the spectral reflectances of plural points on the second chart are input. Color differences are calculated from the data obtained from the second chart and data associated with the spectral reflectance of the color target.