Printing Device Gamut Mapping Preview Selection
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Solution Overview
Problem
Conventional printing technologies that modify colors outside the printing color gamut to fit within it often result in decreased user satisfaction with printed images, as they compromise on color accuracy and quality.
Innovation Solution
A printing device and method that acquires image data, determines the image and printing color gamuts, and executes multiple gamut mapping processes with different methods, displaying preview images of the results to the user for selection before printing, allowing for optimal color reproduction within the printing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If colors outside the printing color gamut are modified to fit within the printing color gamut, then color reproduction within printing capabilities is improved, but user satisfaction decreases due to compromised color accuracy and quality
Solution Approach 1:
The patent divides the gamut mapping process into multiple distinct methods (first gamut mapping process and second gamut mapping process), each producing different preview images. This segmentation allows users to see and compare multiple color reproduction approaches, enabling them to select the method that best balances technical accuracy with their satisfaction requirements.
Solution Approach 2:
The patent adds a new dimension to the gamut mapping process by introducing user selection capability. Instead of automatically applying a single gamut mapping method, the system presents multiple preview images generated by different methods and allows users to select their preferred result, thereby incorporating user preferences into the color reproduction process.
2Productivity
If a single gamut mapping process is applied automatically, then processing efficiency is improved, but the ability to maintain optimal color reproduction for different user preferences is reduced
Solution Approach 1:
The patent transforms the static, automatic gamut mapping process into a dynamic interactive process. The system automatically generates multiple preview images using different gamut mapping methods, then dynamically adapts to user preferences by allowing selection. This maintains efficiency through automated generation while achieving adaptability through user interaction.
Solution Approach 2:
The patent performs preliminary action by pre-generating multiple preview images using different gamut mapping methods before the user makes a selection. This allows the system to prepare multiple color reproduction options in advance, then present them to the user for selection, combining efficient automated processing with adaptable user-specific results.
Data Source
AI summary
A printing device includes a printing unit and a controller. The controller performs: acquiring image data; acquiring an image color gamut that is a specific area of a predetermined color space occupied by color values included in the image data; receiving information on a first color that is specified by a user and is present in the image color gamut; executing, on the basis of whether the first color is present in a printing color gamut that is a specific area of the predetermined color space occupied by color values of colors printable by the printing unit, different gamut mapping processes on the image data; displaying, prior to printing based on the image data, the first color and preview images corresponding to results of the gamut mapping processes; and printing, using the printing unit, an image corresponding to the preview image selected by the user among the displayed preview images.