Multimedia Color Standard Conversion for Consistent Video Rendering
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Solution Overview
Problem
When editing videos with multimedia materials of different color display standards, the synthesized video often exhibits visual discrepancies due to differing color spaces and brightness ranges, leading to suboptimal display effects and reduced user experience.
Innovation Solution
An image processing method and apparatus that aligns the color display standards of multimedia materials to a target standard by transferring non-target materials into the target standard using electro-optical and optical-optical transfer functions, followed by gamut mapping, ensuring consistent visual effects across the synthesized video.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multimedia materials of different color display standards are edited together, then the variety and richness of video content is improved, but visual consistency and display quality deteriorate
Solution Approach 1:
The patent transforms multimedia materials by changing their color space parameters from different color display standards (SDR, HLG, PQ) to a target color display standard. This involves converting electro-optical transfer functions and optical-optical transfer functions to achieve uniform color representation across all materials, thereby maintaining visual consistency while supporting diverse input formats
Solution Approach 2:
The patent introduces a target color display standard as an intermediary reference frame. All multimedia materials with different color standards are converted to this intermediate target standard before synthesis, ensuring visual consistency. The target standard acts as a mediator that harmonizes the different color spaces without losing the characteristics of the original materials
2Manufacturing precision
If color display standard transfer is performed on all multimedia materials, then visual consistency is improved, but processing time and computational resources increase
Solution Approach 1:
The patent performs color standard transfer selectively rather than universally. It identifies multimedia materials that actually require conversion based on their source color standards and only applies transfer to those materials, avoiding unnecessary processing of materials that are already in the target format. This reduces overall processing time while maintaining color consistency where needed
Data Source
AI summary
The present disclosure relates to an image processing method and apparatus, an electronic device and a readable storage medium. The method comprises: traversing a plurality of multimedia materials, and according to a target color display standard, determining a multimedia material of a non-target color display standard included in the plurality of multimedia materials; converting the multimedia material of the non-target color display standard into a multimedia material of the target color display standard; and performing image rendering on the plurality of multimedia materials according to the target color display standard, so as to display the plurality of multimedia materials according to the image rendering result or export the plurality of multimedia materials as a video file in a specific format according to the image rendering result.