Camera color adjusting method and apparatus

Patent metadata

Field	Value
Publication number	US-2019124325-A1
Application number	US-201616089472-A
Country	US
Kind code	A1
Filing date	Dec 20, 2016
Priority date	Jun 1, 2016
Publication date	Apr 25, 2019
Grant date	—

Abstract

The present invention discloses a camera color adjusting method and apparatus. The method comprises: acquiring a stored proportion coefficient of an image sensor of a camera under a light source to be tested; controlling the camera to shoot test drawings including color blocks under a predefined light source to obtain test photos under the predefined light source; acquiring RGB values of each color block in the test photos under the predefined light source; generating test photos corresponding to the light source to be tested according to the RGB values of each color block and the proportion coefficient under each light source to be tested; and performing color adjustment for the camera according to all the test photos.

First claim

1 - 9 . (canceled)

10 . A camera color adjusting method, the method comprising:
acquiring a stored proportion coefficient of an image sensor of a camera under a light source to be tested; controlling the camera to shoot test drawings including color blocks under a predefined light source to obtain test photos under the predefined light source; acquiring RGB values of each color block in the test photos under the predefined light source; generating test photos corresponding to the testing light source according to the RGB values of each color block and the proportion coefficient under each light source to be tested; and performing color adjustment for the camera according to all the test photos.

11 . The method according to claim 10 , wherein the method further comprises:
controlling the camera to shoot the test drawings under the predefined light source and the light source to be tested respectively to obtain test photos under the predefined light source and the testing light source respectively; recording RGB values of a first color block in each test photo; calculating by using the RGB values of the first color block in the test photo under each light source to be tested and the RGB values of the first color block in the test photo under the predefined light source to obtain a proportion coefficient of the image sensor the camera under each testing light source; and storing the proportion coefficient of the image sensor of the camera under the testing light source.

12 . The method according to claim 11 , wherein calculating by using the RGB values of the first color block in the test photo under each testing light source and the RGB values of the first color block in the test photo under the predefined light source to obtain a proportion coefficient of the image sensor the camera under each testing light source comprises:
taking the ratio of the RGB values of the first color block in the test photo under each testing light source to the RGB values of the first color block in the test photo under the predefined light source as the proportion coefficient of the corresponding testing light source.

13 . The method according to claim 10 , wherein generating test photos corresponding to the testing light source according to the RGB values of each color block and the proportion coefficient under each testing light source comprises:
multiplying the RGB values of each color block by the proportion coefficient of the corresponding testing light source respectively to obtain RGB values of each color block under the corresponding testing light source; and generating the test photos corresponding to the testing light source according to the RGB values of each color block under the corresponding testing light source.

14 . A camera color adjusting apparatus, comprising:
a proportion coefficient acquisition module configured for acquiring a stored proportion coefficient of an image sensor of a camera under a testing light source; a first control module configured for controlling the camera to shoot test drawings including color blocks under a predefined light source to obtain test photos under the predefined light source; an RGB values acquisition module configured for acquiring RGB values of each color block in the test photos under the predefined light source; a photo generation module configured for generating test photos corresponding to the testing light source according to the RGB values of each color block and the proportion coefficient under each testing light source; and an adjusting module configured for performing color adjustment for the camera according to all the test photos.

15 . The apparatus according to claim 14 , further comprising:
a second control module configured for controlling the camera to shoot the test drawings under the predefined light source and the testing light source respectively to obtain test photos under the predefined light source and the testing light source respectively; a recording module configured for recording RGB values of a first color block in each test photo; a proportion coefficient calculation module configured for calculating by using the RGB values of the first color block in the test photo under the testing light source and the RGB values of the first color block in the test photo under the predefined light source to obtain a proportion coefficient of the image sensor the camera under the testing light source; and a storage module configured for storing the proportion coefficient of the image sensor of the camera under the testing light source.

16 . The apparatus according to claim 15 , wherein the proportion coefficient calculation module is configured for:
taking the ratio of the RGB values of the first color block in the test photo under each testing light source to the RGB values of the first color block in the test photo under the predefined light source as the proportion coefficient of the corresponding testing light source.

17 . The apparatus according to claim 14 , wherein the photo generation module comprises:
an RGB values calculation unit configured for multiplying the RGB values of each color block by the proportion coefficient of the corresponding testing light source respectively to obtain RGB values of each color block under the corresponding testing light source; and a photo generation unit configured for generating the test photos corresponding to the light source to be tested according to the RGB values of each color block under the corresponding testing light source.

18 . A computer readable storage medium storing program codes for performing the method according to claim 1 .

Assignees

• Goertek Inc

Inventors

• Lv Sihao

Classifications

• H04N23/88

  for colour balance, e.g. white-balance circuits or colour temperature control · CPC title

• H04N17/02

  for colour television signals · CPC title

• G06T2207/10024

  Color image · CPC title

• H04N17/002 Primary

  for television cameras · CPC title

• G06T7/90

  Determination of colour characteristics · CPC title