Color calibration method and device, projection equipment and storage medium

By performing white balance calibration and color adjustment on the projection device under the target color gamut, the problem of color reproduction of the projector under conditions of varying light sources and complex color gamuts is solved, achieving higher color accuracy and consistency and improving the picture quality experience.

CN121644772APending Publication Date: 2026-03-10APPOTRONICS CORP LTD
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Patent Information

Application Number
CN202411224167.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In situations with varying light sources and complex color gamuts, existing projectors struggle to accurately reproduce the colors of nature, resulting in poor image quality and insufficient color consistency.

Method used

By calibrating the white balance of the projection device under the target color gamut, monochrome images are projected sequentially. The current color coordinates of the monochrome images are detected by a colorimeter, and the color adjustment parameters are adjusted until they match the standard color coordinates under the target color gamut. The standard color adjustment parameters are then obtained and used to calibrate the projected images.

Benefits of technology

It improves the color accuracy and consistency of the projected image, enhancing the customer's picture quality experience.

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Abstract

The invention discloses a color calibration method and device, projection equipment and a storage medium, and relates to the technical field of projection. The method comprises the following steps: carrying out white balance calibration under a target color gamut on projection equipment; the calibrated projection equipment sequentially projects a single-color picture of each color in the six original colors; obtaining the current color coordinates of the projected monochromatic pictures of each color in sequence through a color corrector; adjusting the color adjustment parameter corresponding to each color in the projection equipment until the current color coordinate of the monochromatic picture of each color projected again after the parameter adjustment is detected is matched with the standard color coordinate of the monochromatic picture of each color in the target color gamut, and obtaining the standard color adjustment parameter of each color in the projection equipment. Therefore, the projection equipment after white balance calibration can perform color calibration on the to-be-projected picture by using the standard color adjustment parameter corresponding to each color in the six original colors and then output the to-be-projected picture, so that the color accuracy of the projected picture is improved.
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