Color Conversion Apparatus Selective Pixel Processing
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Solution Overview
Problem
Existing color conversion technologies often result in excessive information loss due to a wide conversion range, as they convert entire areas with similar colors into a specific color, leading to loss of detail and clarity in images.
Innovation Solution
An information processing apparatus that includes an acquisition unit for designated colors, a determination unit to assess whether pixels in a common hue range express specific information, and a conversion unit performing first and second conversion processes to minimize information loss by selectively converting only the designated color and wider hue ranges accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a color conversion process converts a whole area expressed using similar colors into a specific color, then the conversion is comprehensive and complete, but the amount of information lost increases too much
Solution Approach 1:
The patent segments the color conversion process into two distinct operations: a first conversion process for pixels matching the designated color, and a second conversion process for pixels within a wider hue range. This segmentation allows selective application of conversion strength, preserving information in areas where it matters while achieving comprehensive conversion where appropriate.
Solution Approach 2:
The patent applies different conversion qualities to different regions of the image based on local characteristics. The first conversion process applies to specific designated color areas, while the second conversion process applies to broader hue ranges in areas determined not to express important information. This local differentiation resolves the contradiction by making conversion completeness and information preservation context-dependent.
2Area of stationary object
If a wider hue range is converted into a specific color, then the conversion coverage is increased, but the amount of information lost increases
Solution Approach 1:
The patent dynamically adjusts the conversion range based on the informational content of the image area. The determination unit assesses whether a common color area expresses important information, and the conversion unit adapts its behavior accordingly: using the first conversion process for smaller, information-rich areas and the second conversion process for larger, information-poor areas. This dynamic adaptation resolves the contradiction between coverage and information preservation.
Solution Approach 2:
The patent changes the hue range parameter dynamically based on the determination result. For areas determined to express important information, a narrower hue range (first conversion process) is used. For areas determined not to express important information, a wider hue range (second conversion process) is applied. This parameter change strategy allows the system to optimize both coverage and information preservation.
3Adaptability or versatility
If a margin is added to a hue for color designation, then more similar colors are converted, but unnecessary areas may be converted causing information loss
Solution Approach 1:
The patent introduces a feedback mechanism through the determination unit, which evaluates whether common color areas express important information before applying conversion. This feedback loop prevents unnecessary conversion of areas that contain important information, even if they fall within the wider hue range. The system adjusts its conversion behavior based on this feedback, resolving the contradiction between adaptability and information preservation.
Data Source
AI summary
An information processing apparatus includes an acquisition unit that acquires a designated color which is designated as a color, which is converted into a specific color, of a pixel among pixels which express an image, a determination unit that determines whether or not a common color area, which is expressed by pixels in a common hue range, expresses prescribed information in the image, and a conversion unit that performs a first conversion process of converting a pixel corresponding to the acquired designated color into a specific color in the common color area which is determined to express the information, and performs a second conversion process of converting a pixel corresponding to a color in a wider hue range than the designated color into a specific color in the common color area which is determined to not express the information.