Selective Color Profile Application for Hue Reproduction
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Solution Overview
Problem
Existing image forming systems face challenges in accurately reproducing corporate colors across different printing devices, as color profiles intended to adjust hue reproducibility for special colors can inadvertently affect other colors in the image, leading to undesirable shifts in hue for pages that do not use the corporate color.
Innovation Solution
An image forming system that includes an image distribution device and printing devices connected via a network, where the image distribution device manages and distributes print image data with a setting indicating whether a corporate color is used, allowing the printing device to switch color profiles accordingly to ensure accurate hue reproduction only for pages requiring the corporate color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a color profile is used to adjust hue reproducibility for a special color, then the special color reproduction is improved, but other colors close to the adjusted color may also be affected causing hue shifts
Solution Approach 1:
The patent applies local quality by making the color profile application selective rather than universal. The image processing unit determines whether to apply a color profile based on whether special colors are actually present in the image data. This allows the system to apply color correction locally only where needed (in portions containing special colors) while leaving other portions unchanged, thereby resolving the contradiction between improving special color reproduction and avoiding unwanted hue shifts in other colors.
2Manufacturing precision
If a color profile is applied to enhance special color reproduction, then color accuracy for corporate colors is improved, but color accuracy for other colors may deteriorate
Solution Approach 1:
The patent implements dynamics by making the color profile application dynamic rather than static. The system dynamically determines whether to apply a color profile based on the actual content of the image data being processed. This dynamic approach allows the system to adapt its color processing behavior to the specific needs of each image or image portion, thereby maintaining color accuracy where needed while preserving color consistency elsewhere, thus resolving the contradiction between color accuracy and color consistency.
Data Source
AI summary
An image forming system according to one aspect of the present disclosure includes an image distribution device and a printing device. The image distribution device distributes print image data, which includes frame image data including an image applied commonly to a plurality of print materials and variable data including information changed on a print material basis, to an external device via a network. The frame image data is configured to enable a setting that a special color setting is required. When the setting indicating that a special color setting is required is made for the frame image data, the printing device uses a color profile associated with the setting to combine the frame image data and the variable data and form the print image.