Monochrome Image Tone Adjustment via Segmented Conversion Tables
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Solution Overview
Problem
Conventional image processing systems for adjusting color tones in monochrome images are complex and difficult for typical users to operate, failing to meet the needs of users who require fine adjustments without complicating the process for those who do not.
Innovation Solution
A system that allows users to select from a set of modification parameters specific to color or monochrome images, enabling detailed tone adjustments through a conversion curve, with separate input screens for partial adjustments in monochrome images, and utilizing conversion tables to modify tone values within specific ranges to maintain natural image appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fine tone adjustments are enabled in monochrome image processing, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the tone adjustment functionality into separate modes: color image mode with Nc parameters and monochrome image mode with Nm parameters. This segmentation allows fine adjustment capabilities to be isolated to monochrome mode without affecting the simplicity of color mode operation, resolving the contradiction between precision and complexity.
Solution Approach 2:
The patent applies different levels of adjustment complexity to different image types: monochrome images receive fine-grained Nm parameters while color images use simpler Nc parameters. This local differentiation ensures that users who need fine control get it only where necessary, without overwhelming the interface for all users.
2Adaptability or versatility
If multiple modification parameters are provided for monochrome images, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent dynamically adjusts the number of available parameters based on the selected image type. When monochrome mode is selected, Nm parameters become available; when color mode is selected, only Nc parameters are shown. This dynamic adaptation allows the system to provide versatility when needed while maintaining simplicity by default.
Solution Approach 2:
The patent requires users to pre-select the image type (color or monochrome) before accessing adjustment parameters. This preliminary action organizes the complexity by category, allowing users to mentally prepare for the appropriate level of detail without being overwhelmed by all parameters simultaneously.
3Manufacturing precision
If partial adjustment input screen is provided, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the conversion curve adjustment into partial sections that can be independently modified. Users can adjust specific portions of the tone curve without affecting the entire curve, enabling precise local adjustments while keeping the interface manageable through clear visual separation of adjustment regions.
Data Source
AI summary
The following processes are performed when generating new image data by modifying the color tones of images in image data: First the user is allowed to select a parameter from a plurality of modification candidate parameters corresponding to mutually differing modification details; then, according to the selected parameter, modified image data in which the colors of at least a portion of the pixels differ from those in the subject image data, is generated. Note that when the subject image data is color image data, then the selection can be made from Nc color image modification candidate parameters, and when monochrome image data, the selection can be made from Nm (where Nm is an integer larger than Nc) monochrome image modification candidate parameters. This type of process can provide image processing that fulfill the needs of some users with the strict requirement while not complicating the operations performed by typical users.