Image Processing Apparatus Color Tone Control Unit
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Solution Overview
Problem
Digital printers face challenges in maintaining color stability due to unstable operational environments and frequent calibration requirements, leading to increased paper losses and work hours, especially in mass printing scenarios where color consistency across multiple pages is critical.
Innovation Solution
An image processing system that includes a color tone control unit capable of detecting color tone fluctuations and applying gradation correction parameters to stabilize print output, using a combination of hardware and software components to adjust printer settings and maintain initial print state consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If calibration is performed frequently to maintain color stability, then color reproducibility is improved, but paper losses and work hours increase
Solution Approach 1:
The system performs preliminary detection of color tone fluctuations and calculates correction parameters before actual printing. By detecting fluctuations in advance and preparing correction data, the system avoids the need for frequent calibration prints, thereby reducing paper waste while maintaining color accuracy.
Solution Approach 2:
The system continuously monitors color tone fluctuations during printing operations and uses this feedback to dynamically adjust correction parameters. This real-time feedback mechanism allows the system to maintain color stability without requiring repeated calibration cycles, thus reducing paper consumption.
2Reliability
If calibration is performed frequently to maintain color stability, then color reproducibility is improved, but work hours increase
Solution Approach 1:
The system performs automatic color tone detection and correction parameter calculation without requiring operator intervention. The color tone control unit autonomously monitors fluctuations and applies corrections, eliminating the need for manual calibration operations and reducing work hours while maintaining color accuracy.
Solution Approach 2:
The system implements automatic feedback control where color tone fluctuations are continuously detected and correction parameters are dynamically adjusted without manual intervention. This automated feedback loop maintains color reproducibility while minimizing the time and labor required for calibration operations.
3Stability of the object's composition
If color tone correction is applied to maintain initial print state, then color consistency is improved, but device complexity increases
Solution Approach 1:
The system introduces a color tone control unit as an intermediary component that detects color tone fluctuations and calculates correction parameters. This intermediary layer manages the complexity of color correction operations, isolating the main printing system from complex control logic while ensuring color consistency.
Solution Approach 2:
The system maintains color consistency by dynamically changing correction parameters based on detected color tone fluctuations. Rather than modifying the physical printing mechanism, the system adjusts digital correction parameters, which simplifies the hardware complexity while achieving the desired color stability.
4Reliability
If continuous monitoring of color tone is implemented, then color stability is improved, but device complexity increases
Solution Approach 1:
The color tone control unit performs multiple functions including detection of color tone fluctuations, calculation of correction parameters, and application of corrections. By consolidating these functions into a single multi-functional unit, the system achieves continuous color monitoring and stability without proportionally increasing device complexity.
Data Source
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AI summary
An image processing apparatus (28) includes a reflection characteristic detector (40), and a gradation characteristic correction unit (41). The reflection characteristic detector (40) is configured to detect reflective characteristics of respective output images on respective print media formed in a temporarily shifted manner among print media on which output images corresponding to input image data are formed. The gradation characteristic correction unit (41) is configured to correct gradation characteristics of the input image data such that the reflection characteristics of the respective output images on the respective print media detected by the reflection characteristic detector match.