Title:
METHOD AND APPARATUS FOR DIVIDING IMAGE AREA
Document Type and Number:
WIPO Patent Application WO/2015/131772
Kind Code:
A1
Abstract:
A method and an apparatus for dividing an image area are provided. The method includes: a reading step: reading a pixel value of a current pixel and pixel values of multiple adjacent pixels adjacent to the current pixel in an image; a calculation step: calculating a difference between the pixel values of the current pixel and each adjacent pixel, so as to obtain a pixel difference value set, the pixel difference value set including multiple pixel difference values; a processing step: comparing each pixel difference value with a corresponding dynamic threshold in sequence, and determining all adjacent pixels in a same sub-image area as the current pixel, the current pixel and all the adjacent pixels of the current pixel in the same sub-image area constituting one sub-image area; and a traversal step: traversing each pixel in the image, and performing the reading step, the calculation step, and the processing step on each pixel in sequence, so as to acquire multiple sub-image areas of the image. Therefore, a smooth area can be accurately divided from an image.
Inventors:
YUAN TONGGEN (CN)
Application Number:
PCT/CN2015/073285
Publication Date:
September 11, 2015
Filing Date:
February 26, 2015
Export Citation:
Assignee:
TENCENT TECH SHENZHEN CO LTD (CN)
International Classes:
G06T5/00
Foreign References:
| CN1926881A | 2007-03-07 | |||
| CN103426176A | 2013-12-04 | |||
| US20110242418A1 | 2011-10-06 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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