Color data conversion method, color data conversion device, and non-transitory computer-readable recording medium recording color data conversion program
AssigneeSCREEN Holdings Co., Ltd.
InventorHiroki Endo
Life of this patent
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Abstract
A computer analyzes submitted data to identify insufficient data among data necessary for executing C×F color conversion process. When spectral characteristic data of a patch constituting a C×F chart is insufficient, a computer supplements the spectral characteristic data. When complete printing order data has not been obtained, the computer supplements printing order data. The color conversion process is performed using the data after supplement.
Claims15
A color data conversion method for converting, using a computer, color data related to a spot color included in submitted data into color data for a printing device used for printing on a basis of color chart data including spectral characteristic data of each of a plurality of patches corresponding to a plurality of levels of ink density, the color data conversion method comprising:
- a submission step of providing image data to be printed including color data and spectral characteristic data related to a spot color used in the image data to the computer as the submitted data;
- an insufficient patch identification step of identifying, by the computer, a patch, spectral characteristic data of which is not obtained for a spot color used in the image data, as an insufficient patch by analyzing the submitted data;
- a spectral characteristic supplement step of supplementing, by the computer, spectral characteristic data of the insufficient patch;
- a first conversion step of converting, by the computer, color data related to a spot color and included in the image data into spectral characteristic data on a basis of the color chart data including spectral characteristic data supplemented in the spectral characteristic supplement step;
- and
- a second conversion step of converting, by the computer, the spectral characteristic data obtained in the first conversion step into color data for the printing device.
A color data conversion device that converts color data related to a spot color included in submitted data into color data for a printing device used for printing on a basis of color chart data including spectral characteristic data of each of a plurality of patches corresponding to a plurality of levels of ink density, the color data conversion device comprising:
- a processor;
- and
- a memory configured to store a program,
- wherein when the program stored in the memory is executed by the processor, the program causes the processor to:
- receive image data to be printed including color data and spectral characteristic data related to a spot color used in the image data as the submitted data;
- identify a patch, spectral characteristic data of which is not obtained for a spot color used in the image data, as an insufficient patch, by analyzing the submitted data;
- supplement spectral characteristic data of the insufficient patch;
- convert color data related to a spot color and included in the image data into spectral characteristic data on a basis of the color chart data including supplemented spectral characteristic data;
- and
- convert spectral characteristic data obtained by conversion into color data for the printing device.
A non-transitory computer-readable recording medium recording a color data conversion program for converting color data related to a spot color included in submitted data into color data for a printing device used for printing on a basis of color chart data including spectral characteristic data of each of a plurality of patches corresponding to a plurality of levels of ink density, wherein
- the color data conversion program causes a computer to execute
- an insufficient patch identification step of identifying a patch, spectral characteristic data of which is not obtained for a spot color used in image data to be printed including color data, as an insufficient patch by analyzing the submitted data including the image data and spectral characteristic data related to a spot color used in the image data,
- a spectral characteristic supplement step of supplementing spectral characteristic data of the insufficient patch,
- a first conversion step of converting color data related to a spot color and included in the image data into spectral characteristic data on a basis of the color chart data including spectral characteristic data supplemented in the spectral characteristic supplement step, and
- a second conversion step of converting spectral characteristic data obtained in the first conversion step into color data for the printing device.
Dependencies are inferred from the claim text.