Image Processing Apparatus Density Adjustment for Copy-Forgery-Inhibited Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing density adjustment mechanisms for copy-forgery-inhibited pattern images are cumbersome and time-consuming, as they require trial and error to set appropriate density levels for the latent and background portions, and are prone to errors due to variations in printer characteristics and environmental conditions.
Innovation Solution
An image processing apparatus and method that includes multiple interfaces for setting relative values, reference values, and density adjustments, allowing for independent adjustment of the latent and background portions, and utilizes sample printing steps to determine optimal density settings, ensuring the density relationship between the two portions remains consistent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional density adjustment methods are used for copy-forgery-inhibited pattern images, then the density can be adjusted, but the process becomes cumbersome and time-consuming due to trial and error
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing optimal density adjustment values in a lookup table before actual printing operations. When a user needs density adjustment, the system directly retrieves the pre-computed values based on the specific pattern type and printing conditions, eliminating the need for time-consuming trial and error adjustments during the actual printing process.
Solution Approach 2:
The patent changes the parameter representation by transforming the complex multi-dimensional density adjustment problem into a simplified lookup operation. The system pre-computes density values for various combinations of pattern types, printing conditions, and density requirements, storing them as discrete parameters in a table that can be quickly queried and applied without iterative adjustment.
2Manufacturing precision
If density adjustment is performed through trial and error, then density settings can be modified, but errors occur due to variations in printer characteristics and environmental conditions
Solution Approach 1:
The patent implements feedback by incorporating printer characteristic data and environmental condition parameters into the pre-computation process. The lookup table is generated based on actual measurements and characteristics of specific printers and operating conditions, allowing the system to automatically compensate for variations without requiring manual trial and error. The pre-computed values inherently include correction factors derived from feedback about printer behavior under different conditions.
Solution Approach 2:
The patent changes parameters by incorporating printer-specific characteristics and environmental conditions as input parameters for the density calculation. Instead of using generic density values, the system pre-computes and stores adjusted density values that are specific to each printer model and operating condition, transforming the problem from one requiring iterative adjustment to one with predetermined accurate parameters.
3Manufacturing precision
If multiple adjustment operations are performed to determine density relationship, then the density can be optimized, but the process becomes complex and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-computing the optimal density relationships for various pattern types and printing conditions before actual use. The complex multi-parameter optimization problem is solved in advance, and the results are stored in a lookup table that provides direct answers during printing operations, eliminating the need for complex real-time adjustment mechanisms.
Solution Approach 2:
The patent uses copying by storing pre-computed density adjustment solutions in a lookup table that can be rapidly queried and applied. Instead of performing complex calculations or adjustments during the actual printing process, the system copies the appropriate pre-determined density values from the table based on the current printing conditions, significantly simplifying the operational complexity.
Data Source
AI summary
An image processing apparatus performs a density adjustment process for generating an image containing a copy-forgery-inhibited pattern image for warning against the use of copy products. To help users to easily adjust the density of a latent image portion and a background portion in the copy-forgery-inhibited pattern image, the image processing apparatus determines a density relationship of the latent image portion and the background portion by performing a plurality of adjustment operations, in combination, different in the amount of adjustment relating to the range of variable density in at least one of the latent image portion and the background portion, and sets, based on the density relationship, the density data of each of the latent image portion and the background portion in the data of the copy-forgery-inhibited pattern image.