Method and apparatus for processing an image based on detected information

Patent metadata

Field	Value
Publication number	US-9927867-B2
Application number	US-201414220876-A
Country	US
Kind code	B2
Filing date	Mar 20, 2014
Priority date	Mar 20, 2013
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A method and apparatus for processing an image based on detected information are provided. The method includes obtaining information relating to properties of the image, property information related to the image; obtaining ambient environment information of a display device for displaying the image; and processing the image based on the property information and the ambient environment information.

First claim

What is claimed is:

1. A method of processing an image to be displayed, the method comprising:
obtaining property information related to an inherent property of the image;
obtaining ambient environment information of a display device for displaying the image; and
processing the image based on the property information and the ambient environment information,
wherein the processing comprises adjusting a sharpness level of the image, based on a difference between a brightness of the image and a brightness of an ambient environment, and
wherein the sharpness level of the image is adjusted inversely proportional to the difference between the brightness of the image and the brightness of the ambient environment.

2. The method of claim 1 , wherein the property information comprises at least one of a white point, a gamma value, a color temperature, and a color gamut of the image.

3. The method of claim 2 , wherein the property information further comprises information related to a variation in the property information, and
wherein the variation is a difference value in at least one type of the property information between a previous image and a current image.

4. The method of claim 1 , wherein the ambient environment information comprises at least one of brightness information of an ambient environment of the display device, color information of ambient lighting and the distance between the user and the display device.

5. The method of claim 1 , wherein the obtaining of the ambient environment information comprises:
recognizing a certain body part of the user;
obtaining a size value of the recognized body part one or more times in a certain time cycle;
calculating an average value of the obtained size values; and
obtaining the distance between the user and the display device, based on the average value of the obtained size values.

6. The method of claim 1 , wherein the processing of the image comprises:
determining a parameter of an image processing algorithm based on the property information and the ambient environment information; and
processing the image by using the determined parameter.

7. The method of claim 6 , wherein the determining of the parameter comprises determining the parameter by using a certain mathematical expression having the property information and the ambient environment information as input values, and having the parameter as an output value.

8. The method of claim 6 , wherein the determining of the parameter comprises determining the parameter by using a lookup table comprising parameter values determinable according to values of the property information and the ambient environment information.

9. The method of claim 6 , wherein the image processing algorithm comprises an algorithm to control quality of the image by performing at least one of sharpness improvement, contrast control, noise reduction and saturation control.

10. The method of claim 1 , wherein the processing of the image comprises:
determining a physical property of the image based on the property information and the ambient environment information; and
processing the image by using the determined physical property.

11. The method of claim 10 , wherein the determined physical property comprises at least one of a color temperature, a gamma value, a white point, and primary colors.

12. The method of claim 1 , wherein the processing of the image comprises, in response to it being sensed that at least one of the property information of the image and the ambient environment information obtained in a certain time cycle varies by a value equal to or greater than a reference value, processing the image based on the property information and the ambient environment information.

13. The method of claim 1 , wherein the obtaining of the property information of the image comprises obtaining property information related to images comprised in a certain unit, and
wherein the processing of the image comprises processing the images in the certain unit based on the property information and the ambient environment information.

14. The method of claim 13 , wherein the image is processed in units of one of a frame, a scene and a sequence.

15. The method of claim 1 , wherein the processing of the image comprises processing the image by gradually increasing or reducing a variable for processing the image based on the property information and the ambient environment information.

16. The method of claim 1 , further comprising displaying the processed image.

17. The method of claim 1 , wherein the image comprises a screen displayable on the display device comprising one of a user interface screen, a web page screen and an application execution screen.

18. An apparatus for processing an image to be displayed, the apparatus comprising:
a memory that obtains inherent property information of the image;
a sensor that obtains ambient environment information of a display device to display the image, the ambient environment information comprising a distance between a user and the display device;
an image processor that adjusts a sharpness level of the image based on the property information and the distance between the user and the display device,
wherein the image processor adjusts a sharpness level of the image, based on a difference between a brightness of the image and a brightness of an ambient environment, and
wherein the sharpness level of the image is adjusted inversely proportional to the difference between the brightness of the image and the brightness of the ambient environment.

19. The apparatus of claim 18 , wherein the property information comprises at least one of a white point, a gamma value, a color temperature and a color gamut of the image.

20. The apparatus of claim 19 , wherein the property information further comprises information related to a variation in the property information, and
wherein the variation is a difference value in at least one type of the property information between a previous image and a current image.

21. The apparatus of claim 18 , wherein the ambient environment information comprises at least one of brightness information of an ambient environment of the display device, color information of ambient lighting and the distance between the user and the display device.

22. The apparatus of claim 18 , further comprising a sensor that recognizes a certain body part of the user,
wherein the sensor obtains a size value of the recognized body part one or more times in a certain time cycle, calculates an average value of the obtained size values, and obtains the distance between the user and the display device, based on the average value.

23. The apparatus of claim 18 , wherein the image processor determines a parameter of an image processing algorithm based on the property information and the ambient environment information, and processes the image by using the determined parameter.

24. The apparatus of claim 23 , wherein the image processor determines the parameter by using a certain mathematical expression having the property information and the ambient environment information as input values, and having the parameter as an output value.

25. The apparatus of claim 23 , wherein the image processor determines the parameter by using a lookup table comprising parameter values determinable according to values of the property information and the ambient environment information.

26. The appara

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yeom Jee-Young
• Lee Min-Woo
• Kim Jong-Ho
• Park Hyun-Hee
• Bae Hak-Gyun
• Jang Seul-Ki
• Park Jeong-Hoon

Classifications

• G09G2360/144

  the light being ambient light · CPC title

• H04N5/20 Primary

  Circuitry for controlling amplitude response · CPC title

• H04N21/44008

  involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream (arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59) · CPC title

• G09G2354/00

  Aspects of interface with display user · CPC title

• H04N5/58

  in dependence upon ambient light · CPC title