An image processing method and device

An image processing and image technology, applied in the field of image processing, can solve the problems of large influence of lighting and image shadows, and achieve the effect of high anti-shadow, high anti-light, and simplified segmentation process

Active Publication Date: 2021-11-12
LAUNCH TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the traditional image preprocessing process is greatly affected by light and image shadows, and cannot quickly achieve fast image preprocessing to segment the foreground and background images in the image.

Method used

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  • An image processing method and device
  • An image processing method and device
  • An image processing method and device

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Embodiment Construction

[0070] The embodiment of the present application provides an image processing method and device for quickly performing high-frequency filtering on an image, and performing Kalman filtering on the high-frequency filtered image again to quickly segment the foreground image and background in the current image image.

[0071] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0072] The terms "first", "second", ...

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Abstract

The embodiment of the invention discloses an image processing method and device, which are used to rapidly segment a foreground image and a background image in an image. The method in the embodiment of the present application includes: acquiring an original image, and judging whether the original image is a single-channel image; if not, converting the original image into a single-channel image to obtain a grayscale image of the original image; Perform high-frequency filtering on the grayscale value of each pixel in the grayscale image to obtain a first grayscale image; according to the grayscale image and the first grayscale image, the grayscale value of each pixel in the grayscale image value to perform Kalman filtering to obtain the template image of the grayscale image; calculate the distance range between the grayscale value of each pixel in the template image and the grayscale value difference of the corresponding pixel in the first grayscale image If the distance norm is greater than the preset threshold, the current pixel is defined as the foreground image, otherwise, the current pixel is defined as the background image.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to an image processing method and device. Background technique [0002] With the development of computer technology, more and more information is transmitted in the form of digital images. In computer image processing, foreground segmentation and extraction is a basic operation. Determine which is the foreground object and which is the background object, and segment the foreground key object of interest from it. [0003] In natural scenes, the image background is complex, the resolution is low, and the images are diverse and randomly distributed. In traditional image recognition, it is mainly for high-quality document images. It is necessary to denoise, increase, distort correction, and zoom the image first. Preprocessing the image, etc., can achieve a high level of recognition when the requirements are met. Because a good image preprocessing process is a ke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T7/136G06T7/194
CPCG06T5/005G06T2207/10004G06T2207/20172G06T7/136G06T7/194
Inventor 刘均秦文礼
Owner LAUNCH TECH CO LTD
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