公开(公告)号：US20160212301A1

公开(公告)日：2016-07-21

申请号：US14987017

申请日：2016-01-04

Applicant: FUJIFILM Corporation

Inventor： Kiyomi TAMAGAWA

IPC: H04N1/54 ,  G06K15/02 ,  H04N1/60

CPC classification number: H04N1/54 ,  G06K15/1868 ,  G06K15/1878 ,  H04N1/60 ,  H04N1/6022 ,  H04N1/603

Abstract: The method includes creating: a first table defining conversion relationship from a signal of a first standard color to which limitation of a total amount of ink is not applied into a signal of a second standard color to which the limitation is applied; a second table defining conversion relationship from the signal of the second standard color into a first expansion color signal to which the limitation is applied; a third table defining conversion relationship from a color signal in a device-independent color space corresponding to the signal of the second standard color into a color signal in a device-dependent color space; and a fourth table (color profile) defining conversion relationship from a color signal in the device-independent color space corresponding to the signal of the second standard color into a second expansion color signal in the device-dependent color space by the third and second tables.

Abstract translation: 该方法包括创建：从第一标准颜色的信号定义转换关系的第一表，其中总墨量的限制不被施加到应用限制的第二标准颜色的信号; 定义从第二标准颜色的信号到应用限制的第一扩展颜色信号的转换关系的第二表; 第三表，其将与第二标准颜色的信号相对应的与设备无关的颜色空间中的颜色信号的转换关系定义为依赖于设备的色彩空间中的颜色信号; 以及第四表（颜色分布），其将与第二标准颜色的信号相对应的与设备无关的颜色空间中的颜色信号定义为通过第三和第二表在设备相关颜色空间中的第二展开颜色信号 。

公开(公告)号：US20240176972A1

公开(公告)日：2024-05-30

申请号：US18434818

申请日：2024-02-07

Applicant: FUJIFILM CORPORATION

Inventor： Toshiyuki MAKUTA ,  Misato SASADA ,  Kiyomi TAMAGAWA ,  Takuma KAWAMOTO

IPC: G06K15/02 ,  C09D11/30 ,  G06K15/10 ,  H04N1/60

CPC classification number: G06K15/1878 ,  C09D11/30 ,  G06K15/102 ,  H04N1/6019

Abstract: A color management apparatus includes at least one processor. The processor performs conversion between a first signal value and a first chromaticity value through a color profile. The color profile is created using a second chromaticity value of a color chart formed of at least one ink composition containing a liquid crystal compound and a chiral compound, and a second signal value. Each of the second chromaticity value and the second signal value is associated with amounts of the liquid crystal compound and the chiral compound.

公开(公告)号：US20240020499A1

公开(公告)日：2024-01-18

申请号：US18476319

申请日：2023-09-28

Applicant: FUJIFILM Corporation

Inventor： Kiyomi TAMAGAWA

IPC: G06K15/02 ,  G06K15/10

CPC classification number: G06K15/023 ,  G06K15/1878 ,  G06K15/1868 ,  G06K15/102

Abstract: There are provided a chart manufacturing apparatus, a chart manufacturing method, a program, and an image forming system that do not need to switch backgrounds in a case of measuring a chart using two types of backgrounds having colors different from each other. The chart manufacturing apparatus that forms, on a transparent substrate, a chart (102) measured by applying a first background color and a second background color, forms a first measurement background image (130) on a transparent substrate (100) using a coloring material corresponding to a first background color, forms a first patch group (122) including one or more first patches (126) using a coloring material of a first color at a position corresponding to the first measurement background image, and forms a second patch group (120) including one or more second patches (124) at a position where the first measurement background image is not formed.

公开(公告)号：US20130128286A1

公开(公告)日：2013-05-23

申请号：US13682461

申请日：2012-11-20

Applicant: FUJIFILM CORPORATION

Inventor： Kiyomi TAMAGAWA

IPC: G06K15/02

CPC classification number: G06K15/02 ,  B41J2/17566 ,  H04N1/605

Abstract: When image is formed by a liquid ejection head, input image data is subjected to conversion processing including tone conversion using a first look-up table (LUT) and density correction or non-uniformity correction in nozzle units using second LUTs. Ink use amount in image formation is predicted from reduced image data which is generated from the input image data. In this, the calculation is made more efficient by applying a third LUT which is compiled according to requirements from the second LUTs, to the reduced image data, rather than using the second LUTs directly. Since the image conversion processing is carried out which combines the first LUT for tone conversion and the third LUT corresponding to the non-uniformity correction, and the ink amount distribution data is calculated from the reduced image data after the conversion, then it is possible to ascertain an accurate ink amount which reflects the image adjustment conditions.

Abstract translation: 当通过液体喷射头形成图像时，使用第二LUT对输入图像数据进行使用第一查找表（LUT）的色调转换和喷嘴单元的浓度校正或非均匀性校正的转换处理。 从从输入图像数据生成的缩小图像数据预测图像形成中的墨水使用量。 在这种情况下，通过应用根据第二LUT的要求编译的第三LUT到缩小图像数据，而不是直接使用第二LUT，使得计算更有效。 由于执行了组合用于色调转换的第一LUT和与不均匀性校正相对应的第三LUT的图像转换处理，并且从转换后的缩小图像数据计算墨量分布数据，因此可以 确定反映图像调整条件的准确的墨量。