APPARATUS AND METHOD FOR EVALUATING METAL SURFACE TEXTURE

    公开(公告)号:US20190195624A1

    公开(公告)日:2019-06-27

    申请号:US15854829

    申请日:2017-12-27

    Inventor: Makoto KATO

    Abstract: An object is to quantify the texture such as irregularity and gloss of a metal surface. Centers of Lab chromaticity distributions are identified (S145), and one of the Lab chromaticity distribution is entirely shifted (mapped) by deviations ΔA, ΔB and ΔL of a central coordinate, such that one of central coordinates of two distributions U1(L,a,b) and U2(L,a,b) matches with the other central coordinate (S146). A texture spread index that indicates a difference in spatial spread is then computed (S147). This configuration computes the spatial spread of the Lab chromaticity distribution in a three-dimensional space, and quantifies the irregularity of an inspection plane by diffraction phenomenon of illumination light. The difference in spread other than the color is applicable to evaluation of the irregularity of the metal surface or the like.

    Colorimetry Device And Colorimetry Method
    5.
    发明申请

    公开(公告)号:US20180052052A1

    公开(公告)日:2018-02-22

    申请号:US15558450

    申请日:2016-03-28

    CPC classification number: G01J3/52 G01J3/10 G01J3/463 G01J3/465 G01J3/524

    Abstract: In a colorimetry device and a colorimetry method of the present invention, reference chart definition information including at least reference chart identification information about a reference color chart and patch position definition information indicating a position of each of plurality of patches in the reference color chart is stored, and whether the obtained color chart is matched with the reference color chart is determined based on the reference chart identification information. When the obtained color chart is determined to be matched with the reference color chart, a position of a colorimetry unit with respect to the color chart is relatively moved to the position of each of the plurality of patches in the color chart based on the reference chart definition information, and the colorimetry unit measures the color of each of the plurality of patches.

    Color Identifying System, Color Identifying Method and Display Device

    公开(公告)号:US20170148189A1

    公开(公告)日:2017-05-25

    申请号:US15307551

    申请日:2015-10-18

    Inventor: Hui LI

    Abstract: A color identifying system, a color identifying method and a display device are provided. The color identifying system comprises an image acquiring unit, a color analyzing unit and an information output unit; the image acquiring unit is configured to acquire an image of an object to be identified; the color analyzing unit is configured to extract profiles of the pattern regions of the object to be identified, and analyze colors of the pattern regions, to determine overall color information of the object to be identified; and the information output unit is configured to output the overall color information of the object to be identified. The color identifying system can help a color vision defective person to identify color of an object, which is greatly convenient to production and life of the color vision defective person, and thus significantly improving quality of life of the color vision defective person.

    Normalization method for a value of an equivalent lightness and a value of a degree of vividness of an arbitrary color, tone type identification method, munsell value calculating method, image formation method and interface screen display device
    8.
    发明授权
    Normalization method for a value of an equivalent lightness and a value of a degree of vividness of an arbitrary color, tone type identification method, munsell value calculating method, image formation method and interface screen display device 有权
    任意颜色的相当亮度值和生鲜度值的归一化方法,色调类型识别方法,孟塞尔值计算方法,图像形成方法和界面屏幕显示装置

    公开(公告)号:US09253370B2

    公开(公告)日:2016-02-02

    申请号:US14410794

    申请日:2012-06-26

    Abstract: [Problem] To provide a technique for calculating the psychophysical value of a color corresponding to an arbitrarily defined tone by modeling a tone concept defined in the PCCS (Practical Color Co-ordinate System).[Solution] A method for, regarding multiple types of tones defined in the PCCS, generating a definitional equation for each saturation to which each of the tones belongs, wherein a computer acquires the Munsell values of colors belonging to respective multiple tones belonging to the same saturation among the multiple types of tones defined in the PCCS, the computer stores the acquired multiple Munsell values in a predetermined storage device, the computer converts each of the multiple Munsell values stored in the storage device into a value in a predetermined color space composed of two axes of values representing lightness and values representing vividness, and the computer performs a predetermined regression calculation on a point group projected to the predetermined color space to find a regression equation passing through the origin of the predetermined color space.

    Abstract translation: [问题]提供一种通过对在PCCS(实用色彩坐标系)中定义的色调概念进行建模来计算与任意定义的色调相对应的颜色的心理物理值的技术。 [解决方案]关于在PCCS中定义的多种类型的音调的方法,为每个音调所属的每个饱和度生成定义方程,其中计算机获取属于相同的各个多个音调的颜色的孟塞尔值 在PCCS中定义的多种类型的音调之间的饱和度,计算机将所获取的多个Munsell值存储在预定的存储装置中,计算机将存储在存储装置中的多个Munsell值中的每一个转换成由 表示亮度的两个轴和表示鲜明度的值,并且计算机对投影到预定色彩空间的点组执行预定的回归计算,以找到通过预定色彩空间的原点的回归方程。

    COLOR MEASUREMENT APPARATUS, METHOD OF MEASURING A COLOR AND COLOR MEASUREMENT SYSTEM
    9.
    发明申请
    COLOR MEASUREMENT APPARATUS, METHOD OF MEASURING A COLOR AND COLOR MEASUREMENT SYSTEM 审中-公开
    颜色测量装置,测量颜色和颜色测量系统的方法

    公开(公告)号:US20150260578A1

    公开(公告)日:2015-09-17

    申请号:US14640874

    申请日:2015-03-06

    CPC classification number: G01J3/513 G01J3/0208 G01J3/465

    Abstract: A color measurement apparatus measures a color distribution of an object that includes a first substance and a second substance. The color measurement apparatus comprises an imager that captures an image of the object, the image being two dimensional and the image includes a first color feature of the first substance and a second color feature of the second substance. Furthermore, the color measurement apparatus comprises a calculator that calculates distribution information of the first substance and the second substance based on the image.

    Abstract translation: 颜色测量装置测量包括第一物质和第二物质的物体的颜色分布。 该彩色测量装置包括:拍摄对象的图像的图像,图像是二维的,图像包括第一物质的第一颜色特征和第二物质的第二颜色特征。 此外,颜色测量装置包括基于图像计算第一物质和第二物质的分布信息的计算器。

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