Method and system for determining geometric outline area on image

An image and outline technology, applied in the field of electronic information, can solve problems such as barcode reading failure, reading results, inability to determine the exact position of the barcode, errors, etc.

Active Publication Date: 2014-11-19
北京致胜宏达科技有限公司
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  • Abstract
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Problems solved by technology

[0003] In the process of realizing the present invention, the inventor found that the existing image analysis process of boundary detectio

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  • Method and system for determining geometric outline area on image
  • Method and system for determining geometric outline area on image
  • Method and system for determining geometric outline area on image

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Embodiment Construction

[0056] A method and system for determining a geometric contour area on an image according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0057] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0058] see figure 1 , an embodiment of the present invention provides a method for determining a geometric contour area on an image, which may include:

[0059] S1. Acquiring the original image of the geometric contour area to be determined;

[0060] S2. Perform grayscale processing on the original image to obtain a first processed image;

[0061] S3. Perform an opening operation on the first processed image to obtain a second pro...

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Abstract

The invention discloses a method and system for determining a geometric outline area on an image, and the position of a predetermined geometric outline area on the image can be more accurately determined. The method for determining the geometric outline area on the image includes the steps of conducting gray processing for an original image to obtain a first processing image; respectively conducting open operation processing and closing operation processing for the first image to obtain a second processing image and a third processing image respectively; conducting margin calculation for the second and third processing images to obtain a fourth processing image; conducting binarization calculation for the fourth processing image to obtain a fifth processing image; conducting binarization calculation for the second processing image to obtain a sixth processing image; conducting negation operation processing for the sixth processing image to obtain a seventh processing image; conducting AND operation for the fifth processing image and the seventh processing image to obtain an eighth processing image; conducting contour extraction operation for the eighth processing image to obtain a contour with a predetermined geometry; and restoring position information of the contour to the first processing image to obtain a contour area with the predetermined geometry on the first processing image. The invention is suitable for use in occasions requiring accurate positioning of geometric contour area on an image.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a method and system for determining a geometric contour area on an image. Background technique [0002] In recent years, with the development of image recognition technology, image-based barcode automatic recognition technology has gradually replaced the barcode recognition technology of photoelectric hardware equipment. Image-based barcode automatic recognition includes automatic reading of one-dimensional barcodes and automatic reading of two-dimensional barcodes. The currently existing image-based barcode automatic recognition technology must carry out an image analysis process of boundary detection. [0003] In the process of implementing the present invention, the inventors found that the existing image analysis process of boundary detection cannot determine the precise position of the barcode on the image, which may easily lead to barcode reading failure or ...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06K9/46
Inventor 张建王志琴胡晓航
Owner 北京致胜宏达科技有限公司
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