File Making Time Verification via Color Index Comparison
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Solution Overview
Problem
Current methods for verifying the making time of a file are inaccurate and complex, often requiring destruction of the file and being influenced by various uncontrollable factors, leading to unreliable results.
Innovation Solution
A method and system using a computer to analyze the color index data of a file by sampling color points from both the object and a sample file, where the making time of the sample file is known, to determine the making time of the object file through comparison of color index data, utilizing TWAIN protocol interfaces for data acquisition and reducing human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical or chemical methods are used to verify making time of a file, then verification can be performed, but the file must be destroyed and results are inaccurate
Solution Approach 1:
The patent uses color scanning to create a digital copy of the file's visual appearance, analyzing the color index data of this copy instead of the physical file itself. This allows verification without destruction while maintaining accuracy through computer-based color analysis comparison between the object file and sample file
Solution Approach 2:
The patent replaces physical/chemical analysis methods with a computer-based optical analysis system. By using scanners to obtain color data and software to analyze color index variations, the system substitutes destructive chemical reagents and physical testing with non-destructive digital imaging and computational analysis
2Measurement precision
If chemical methods are used to analyze ink ingredients, then making time can be determined, but the process becomes complex and requires destroying the file
Solution Approach 1:
The patent replaces complex chemical analysis instruments (TLC, HPLC, GC-MS) with a simple color scanner and computer processing system. The scanner captures color information and software calculates color index data, substituting sophisticated chemical equipment with accessible optical devices while achieving comparable or superior measurement precision
Solution Approach 2:
The patent transforms the analysis from chemical composition detection to optical parameter measurement. By focusing on color index changes over time rather than chemical ingredient analysis, the system simplifies the verification process while maintaining the ability to determine making time through characteristic color variation patterns
3Ease of operation
If impressing method is used to verify making time, then physical analysis can be performed, but the accuracy is reduced due to vague time ranges
Solution Approach 1:
The patent enhances the simple impressing method by adding color index analysis as an additional measurement parameter. While the impressing test remains operationally simple, the computer-calculated color index data provides precise numerical values for comparison, transforming vague qualitative assessments into accurate quantitative measurements
Data Source
AI summary
The present invention is providing a method and a system for verifying making time of a file by computer. The method comprises: calling TWAIN protocol interfaces of a scanner for obtaining original color data both of an object file and a sample file, wherein making time of said sample file is known; sampling color points of said original color data of said object file thereby calculating color index data of said object file; and sampling color points of said original color data of said sample file thereby calculating color index data of said sample file; and comparing said color index data of said object file with said color index data of said sample file, and determining making time of said object file based on said known making time of said sample file. In accordance with the present invention, the sample file or the object file can be verified without damaged for the reason of analyzing color of said file by computer. By use of the computer system for sampling, analyzing, carrying out the result the present invention has reduced the influence of man-made factor so that it provides more reliable security to such result.