Display Image Chroma Correction via Target Look-Up Table

The patent segments the image correction process into multiple stages: initial look-up table correction, chroma difference detection, and iterative adjustment. By dividing the correction process into discrete steps with specific focus on chroma components, the system achieves higher chroma accuracy without overwhelming complexity.

The patent implements a feedback mechanism where the chroma difference between the original image and displayed image is continuously detected and used to adjust the look-up table. This closed-loop feedback system iteratively refines the correction until the chroma difference falls within the threshold, ensuring high chroma accuracy.

The patent performs preliminary correction using an initial look-up table before fine-tuning the chroma values. This preliminary action removes the bulk of the color distortion, allowing subsequent iterative adjustments to focus only on minor chroma refinements, thus reducing total correction time.

The patent applies partial correction by focusing adjustments specifically on chroma components that exceed the threshold, rather than recalculating all pixel values. This selective adjustment approach achieves the required accuracy while minimizing computational overhead and correction time.

The patent applies local quality by focusing iterative adjustments only on specific chroma components (R, G, or B channels) that exhibit excessive differences, rather than uniformly adjusting all pixel values. This targeted approach reduces processing complexity while maintaining chroma accuracy.

The patent changes parameters by adjusting the look-up table entries iteratively based on detected chroma differences. By modifying the correction parameters in the look-up table rather than recalculating entire image data, the system achieves high chroma accuracy with reduced computational complexity.