Patent ID: 11948228
Assignee: ARASHI VISION INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A color correction method for a panoramic image, comprising steps of:
acquiring a first fisheye image and a second fisheye image;
unwrapping the first fisheye image to obtain a first image in an RGB color space, and unwrapping the second fisheye image to obtain a second image in the RGB color space;
calculating overlapping areas between the first image and the second image;
converting the first image and the second image from the RGB color space to a Lab color space;
in the Lab color space, according to the mean luminance value of a first overlapping area and the mean luminance value of a second overlapping area, adjusting the luminance value of the first image and the luminance value of the second image to reduce the luminance difference between the first image and the second image; where the first overlapping area being an overlapping area between the first image and the second image on the first image, and the second overlapping area being an overlapping area between the first image and the second image on the second image;
converting the first image of which the luminance value is adjusted and the second image of which the luminance value is adjusted from the Lab color space to the RGB color space; and
in the RGB color space, according to the mean color value of a first overlapping area and the mean color value of a second overlapping area, adjusting the color value of the second image by using the first image as a reference, or adjusting the color value of the first image by using the second image as a reference.