Clip-Based Video Color Temperature Correction for Displays
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Solution Overview
Problem
Image acquisition devices capture images with a certain degree of color temperature deviation from the true color of the target object, affecting the quality of image display.
Innovation Solution
A method and apparatus for processing video by segmenting frames into clips, determining color temperature and adjustment coefficients, and adjusting pixel values to correct color balance, using color spaces like HSV and YUV for accurate color temperature adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color temperature adjustment is performed on each video frame individually, then color accuracy is improved, but processing time increases
Solution Approach 1:
The video is segmented into multiple video clips, and color temperature adjustment is performed on each clip rather than every individual frame. This reduces the total number of adjustments while maintaining color consistency within each clip, thereby decreasing processing time while preserving color accuracy.
Solution Approach 2:
Color temperature parameters are pre-calculated and stored for each video clip during offline processing. During actual video playback or editing, these pre-calculated parameters are directly applied without real-time calculation, significantly reducing processing time while maintaining accurate color temperature correction.
2Measurement precision
If color temperature adjustment coefficient is increased to correct color deviation, then color accuracy is improved, but color balance is disrupted
Solution Approach 1:
Different color temperature adjustment coefficients are applied to different video clips based on their specific color characteristics. Each clip receives a customized adjustment coefficient calculated from its own color temperature parameters, allowing accurate correction without disrupting the overall color balance of the video.
Solution Approach 2:
The system calculates color temperature adjustment coefficients based on feedback from color balance correction coefficients. The color temperature of each video clip is determined by analyzing its color characteristics, and adjustment coefficients are derived from this feedback to achieve accurate color correction while maintaining color balance.
Data Source
AI summary
Provided is a method for processing a video. The method for processing the video can segment an initial video into a plurality of video clips, and calculate color temperatures of the plurality of video clips. For each target video clip in the plurality of video clips, the method can determine a color temperature adjustment coefficient of the target video clip based on a color temperature of the target video clip and a color balance correction coefficient thereof, and adjust a color temperature of at least one video frame in the target video clip by using the color temperature adjustment coefficient.