Patent Document ID: 8199384
Application ID: 11811717
Patent Status: 1

Claim One:
1. A method of compensating for color tone differences between two images, the method comprising: a. receiving a first image of a scene and a second image of the same scene, wherein the first image is generated by a first source and the second image is generated by a second source; b. determining an intensity value for each pixel in the first image and for each pixel in the second image; c. aligning each pixel in the second image to a pixel in the first image, wherein the aligning is done either by up-sampling or down-sampling; d. for each specific intensity value in the second image, establishing a relationship between the specific intensity value in the second image and a corresponding range of intensity values in the first image; e. determining a conversion intensity value for each specific intensity value in the second image according to a statistical measure of the corresponding range of intensity values in the first image; f. generating a tone-mapping table according to the conversion intensity values such that each intensity value in the second image is associated with a specific conversion intensity value; and g. applying the tone-mapping table to one or more images generated by the second source, thereby forming one or more third images with a tone similar to the tone of the first image.