Image Processing Gloss Component Color Tone Correction
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Solution Overview
Problem
Existing image processing technologies fail to effectively adjust the color tone of an entire image while maintaining a natural appearance, particularly when changing the color tone of a captured image, leading to unnatural or strange feelings in the resulting image.
Innovation Solution
An imaging apparatus with a setting unit for light-source color, a generation unit for generating a gloss component based on the corrected light-source color, and a correction unit for adding the gloss component to the image, allowing for synchronized adjustment of the color tone and gloss component to maintain a three-dimensional appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the color tone of the entire image is corrected by changing white balance settings, then the color tone of the image is adjusted, but the gloss component color tone becomes inconsistent leading to an unnatural appearance
Solution Approach 1:
The patent separates the color tone correction into two distinct components: the base image color tone and the gloss component color tone. By independently managing these two segments, the system ensures that when white balance is adjusted for the overall image, the gloss component is simultaneously adjusted to maintain color consistency, preventing the unnatural appearance that would result from uncoordinated color corrections.
Solution Approach 2:
The patent modifies the light-source color parameters used in gloss component generation based on the white balance settings. When the white balance parameters change to adjust the overall image color tone, the system correspondingly adjusts the light-source color parameters for the gloss component, ensuring that the gloss reflects the same color temperature and tone as the corrected base image.
2Ease of operation
If the gloss component is corrected separately before color tone correction, then the gloss appearance is adjusted, but subsequent color tone correction becomes difficult and the gloss may appear unnatural
Solution Approach 1:
The patent performs preliminary action by generating the gloss component using light-source color parameters that are already adjusted according to the target white balance settings. This means that before the actual image output is produced, the gloss component is created with the correct color tone baked in, eliminating the need for subsequent separate color tone adjustments and ensuring consistent appearance throughout the processing pipeline.
Solution Approach 2:
The patent merges the color tone correction process with the gloss component generation process. Instead of treating these as separate sequential operations, the system combines them so that the gloss component is generated with the corrected color tone integrated from the start. This merging ensures that both the base image and gloss component share the same color characteristics, maintaining natural appearance.
Data Source
AI summary
An apparatus configured to correct a captured image using a gloss component based on a virtual light source sets a light-source color of the virtual light source. The apparatus generates the gloss component on a subject in the captured image using the light-source color corrected according to a color tone of the captured image. The apparatus corrects the captured image by adding the generated gloss component to the captured image.