Color Conversion Apparatus Hue Range Centering
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Solution Overview
Problem
Conventional color conversion systems require users to designate multiple positions to set a color conversion range, making the operation cumbersome and limiting the ability to perform desired color conversions, especially when only a single position is designated, resulting in a pinpoint conversion area.
Innovation Solution
A color conversion apparatus that uses a pointing device to allow users to perform color conversion by setting a hue range with the input position as the center, enabling changes in saturation, brightness, or hue for pixels within this range, and displaying the resultant image, allowing for smooth and natural color adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple positions are designated to set color conversion range, then color conversion coverage is improved, but operation complexity increases
Solution Approach 1:
The system pre-calculates and stores hue information for all pixels in the image before the user performs any designation operation. When the user designates a single position, the system can immediately retrieve hue data for all pixels and automatically determine which pixels fall within the conversion range based on hue similarity, eliminating the need for the user to manually designate multiple positions to define the conversion area.
Solution Approach 2:
The patent introduces hue as an intermediary parameter that mediates between the user's simple position designation and the complex color conversion range determination. By comparing hue values of all pixels against the hue at the designated position, the system automatically identifies the conversion target range without requiring the user to manually specify multiple boundary positions, thus simplifying operation while maintaining comprehensive coverage.
2Ease of operation
If single position is designated for color conversion, then operation simplicity is improved, but color conversion coverage deteriorates
Solution Approach 1:
The single designated position serves multiple functions: it provides the center point for range determination, supplies the reference hue value for comparison, and implicitly defines the conversion scope. The system uses this single position to universally determine the conversion range by comparing hue values across all pixels, enabling one position to achieve what previously required multiple positions.
Solution Approach 2:
The system changes the approach from spatial range definition (multiple positions defining an area) to parameter-based range definition (hue similarity threshold). By designating a single position and using hue parameter comparison, the system automatically determines coverage based on color similarity rather than geometric boundaries, expanding conversion coverage from a pinpoint to a meaningful color-based region.
3Speed
If color conversion is performed without hue range setting, then processing speed is improved, but color conversion precision deteriorates
Solution Approach 1:
The system performs preliminary organization of hue data for all pixels before the conversion operation. By pre-calculating and storing hue values in an accessible format, the system enables rapid hue-based filtering during the actual conversion process, maintaining both speed and precision through advance data preparation.
Solution Approach 2:
The patent replaces manual or complex geometric range determination with automated hue parameter comparison. This substitution allows the system to quickly identify conversion targets by comparing hue values against a threshold, achieving both rapid processing and precise color-based selection without requiring complex spatial calculations or multiple user designations.
Data Source
AI summary
A predetermined display image is displayed on a display device, and a hue of the display image corresponding to an input position obtained from a pointing device is obtained. A predetermined range having the obtained hue at a center thereof is set as a conversion target range, and at least one of saturation, brightness, and hue is changed with respect to a pixel of the display image which has a hue within the conversion target range to display a resultant image on the display device.