Color Grading Profile Database for Image Processing
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Solution Overview
Problem
Conventional image processing methods require complex calculations and multiple steps to achieve various effects, leading to prolonged processing times and potential damage to color information, often resulting in poor quality results that users may need to revert.
Innovation Solution
A method and apparatus that utilize a combined color component to perform color grading and correction, generating data in a profile form, storing results, and applying them to target images using a database, allowing for complex effects with a single process while preventing color information corruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional image processing methods are used to adjust color components, then color correction effects can be achieved, but complex calculations are required and processing time increases
Solution Approach 1:
The patent pre-calculates and stores correction data for various color adjustment scenarios in a database before actual image processing. When color correction is needed, the system directly retrieves pre-computed correction values based on the input image's color characteristics, avoiding complex real-time calculations while maintaining correction accuracy.
Solution Approach 2:
The patent creates a color profile representation of the input image that captures essential color characteristics. This profile serves as a simplified copy or abstraction of the full image data, allowing the system to perform corrections based on the profile rather than processing every pixel with complex algorithms, thus reducing computation time while preserving correction quality.
2Adaptability or versatility
If multiple image processing operations are performed to achieve various effects, then comprehensive color adjustment is possible, but color information of the original image deteriorates
Solution Approach 1:
The system performs color space conversion and extracts color characteristics early in the process, before any corrections are applied. The correction data is retrieved from the database based on these pre-extracted characteristics, allowing multiple correction effects to be composed and applied in a single operation rather than through multiple sequential processing steps that would degrade color information.
Solution Approach 2:
The patent transforms the image into a different color space (LAB color space) where color corrections can be performed more efficiently. By changing the color representation parameters, the system can apply complex color adjustments through simpler mathematical operations that preserve the original color information better than conventional RGB-based processing.
3Ease of manufacture
If conventional color correction methods uniformly adjust color components, then processing is simple, but unintended color changes occur in other tones
Solution Approach 1:
The patent analyzes the input image to identify dominant color tones and retrieves correction data specifically tailored to those colors from the database. Instead of uniformly adjusting all pixels, the system applies color corrections selectively based on the actual color distribution in the image, ensuring that only relevant color components are adjusted while preserving other tones.
Solution Approach 2:
By converting to LAB color space and using chroma and hue parameters, the system can make targeted adjustments to specific color attributes without affecting others. The database stores correction data organized by color characteristics, allowing precise retrieval of adjustments suited to the image's actual color palette rather than applying generic uniform corrections.
Data Source
AI summary
A method of color grading and color correction, the method includes: generating data of image processing results obtained by performing various types of color grading and color correction in a profile form, and storing the same; and applying the image processing result to a target image by using profile information of color grading and color correction selected from the stored profiles.