Color Dropout Using Template Print Sheet
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Solution Overview
Problem
Users with limited knowledge of color planes face challenges in efficiently setting removal colors in image processing systems, leading to time-consuming and error-prone processes when attempting to remove comments from documents using a color pen, as they struggle to accurately designate and understand the position relationship between the ink color and the removal color on a two-dimensional color plane.
Innovation Solution
An image processing system that uses a template print sheet with specific areas filled in by the user to extract color information, allowing the system to perform color dropout processing and remove designated colors from original documents, utilizing a three-dimensional LUT for accurate color conversion and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a two-dimensional color plane is displayed for user designation of removal color, then the user can select colors to remove, but users with little color plane knowledge spend excessive time and effort to accurately set the removal color
Solution Approach 1:
The patent introduces a template print sheet as an intermediary tool between the user and the color plane. The template provides pre-defined color swatches that users can physically select by marking, eliminating the need for users to directly interact with and understand the two-dimensional color plane coordinates. This mediator translates complex color selection into a simple marking task.
Solution Approach 2:
The patent creates physical copies of color swatches on a template print sheet that represent colors in the digital color plane. Instead of requiring users to navigate and select colors on a digital interface, the system provides tangible color representations that users can mark, thereby copying the essential color selection function into a more accessible physical format.
2Measurement precision
If the user directly designates removal color on the color plane, then color selection is possible, but position relationship understanding between ink color and removal color area is required leading to errors
Solution Approach 1:
The template print sheet acts as an intermediary that pre-establishes the correct mapping between physical color swatches and their corresponding positions on the digital color plane. Users simply mark the template swatch that matches the ink color, and the system automatically translates this to the correct removal color area designation, eliminating positioning errors.
Solution Approach 2:
The system performs preliminary actions by pre-printing the template with color swatches that correspond to various colors on the color plane before the user arrives. This preliminary setup of color mappings removes the need for users to perform the complex task of matching and positioning colors during the actual removal color setting process.
3Reliability
If repeated adjustments and confirmations are performed to achieve desired comment removal, then accurate color removal is achieved, but the process becomes time-consuming
Solution Approach 1:
The template print sheet enables self-service color selection where the visual comparison between the template swatch and the document's ink color allows users to independently and accurately identify the correct removal color without requiring multiple trial-and-error adjustments or expert guidance. The template serves itself as the reference standard.
Solution Approach 2:
The system incorporates immediate visual feedback by allowing users to compare the template color swatch directly with the ink color on the document. This direct visual feedback mechanism enables users to confirm color matching in a single action rather than requiring repeated adjustments and confirmations, thereby improving both accuracy and speed.
Data Source
AI summary
In accordance with an embodiment, an image processing apparatus comprises a scanner; a designation section configured to designate a color presented in an original document as the object to be removed; extraction section configured to extract color information of the color to be removed based on image data which is obtained by reading, using the scanner, a color information extraction sheet on which an image is formed with a material of the color to be removed; and a conversion section configured to form, based on the designation of the designation section and the color information extracted by the extraction section, an image by removing the image data in the color designated to be removed from the image data of the original document.