Camera color adjusting method and apparatus

Patent metadata

Field	Value
Publication number	US-10595016-B2
Application number	US-201616089472-A
Country	US
Kind code	B2
Filing date	Dec 20, 2016
Priority date	Jun 1, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

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

What is claimed is:

1. A camera color adjusting method, the method comprising:
acquiring 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,
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.

2. The method according to claim 1 , 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.

3. The method according to claim 2 , 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.

4. A non-transitory and computer readable storage medium storing program codes for performing the method according to claim 1 .

5. A camera color adjusting apparatus comprising a memory and a processor, the memory having stored thereon instructions which, when executed by the processor, cause the processor to:
acquire a stored proportion coefficient of an image sensor of a camera under a testing light source;
control the camera to shoot test drawings including color blocks under a predefined light source to obtain test photos under the predefined light source;
acquire RGB values of each color block in the test photos under the predefined light source;
generate 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
perform color adjustment for the camera according to all the test photos,
wherein to generate 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.

6. The apparatus according to claim 5 , wherein the memory has stored thereon instructions which, when executed by the processor, cause the processor to further:
control 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;
record RGB values of a first color block in each test photo;
calculate 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
store the proportion coefficient of the image sensor of the camera under the testing light source.

7. The apparatus according to claim 6 , wherein the memory has stored thereon instructions which, when executed by the processor, cause the processor to further:
take 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.

Assignees

• Goertek Inc

Inventors

• Lv Sihao

Classifications

• G06T2207/10024

  Color image · CPC title

• H04N17/02

  for colour television signals · CPC title

• G06T7/90

  Determination of colour characteristics · CPC title

• H04N17/002 Primary

  for television cameras · CPC title

• H04N1/603

  controlled by characteristics of the picture signal generator or the picture reproducer · CPC title