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Method and device for image enhancement of crop leaves

A leaf and crop technology, which is applied in the field of crop leaf image enhancement, can solve the problems of poor effect, color distortion, and easy image distortion, etc., and achieve the effect of improving image quality, reducing noise influence, and overcoming color distortion

Active Publication Date: 2020-06-09
BEIJING RES CENT FOR INFORMATION TECH & AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is to use median filtering technology for image enhancement. When the image edge information is more complicated, the effect is poor.
The second is the wavelet transform method. This method mainly has the problems of large calculation amount of multi-level wavelet decomposition and low efficiency of image enhancement, and does not consider the factors of the human visual system. Satisfactory image enhancement effect
Then there are image enhancement methods based on Retinex theory, and improved algorithms such as single-scale Retinex, multi-scale Retinex, and multi-scale Retinex algorithm with color restoration developed on this basis. There are mainly problems of different degrees of color distortion.

Method used

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  • Method and device for image enhancement of crop leaves
  • Method and device for image enhancement of crop leaves
  • Method and device for image enhancement of crop leaves

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Embodiment Construction

[0038]The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] Aiming at the problems of the prior art, the present invention provides a crop leaf image enhancement method to improve the crop leaf image quality, reduce noise influence, highlight the useful information in the crop leaf image, and provide further information for subsequent image segmentation and feature extraction. Base.

[0040] Firstly, the image acquisition equipment is used to acquire a color image, and the image acquisition equipment is a camera or a mobile phone or other equipment, or a monitoring system of Daejeon.

[0041] figure 1 It is a flowchart of a method for enhancing a crop leaf image in an embodiment of the present invention, such as figure 1 A...

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Abstract

The present invention provides a method and device for enhancing crop leaf images, which includes: S1. Zooming the collected color images to obtain crop leaf color images; S2. Filtering the crop leaf color images based on an improved guided filtering algorithm. Obtain the first color image; S3. Subtract the first color image from the crop leaf color image to obtain a second color image, where the second color image is a detail image of the first color image; S4. Based on The mean value of the pixel brightness value in the second color image and the contrast of each pixel in the second color image are fused to obtain an enhanced image of the crop leaves by fusing the first color image and the second color image. . The invention enhances the crop leaf image, reduces the influence of noise, highlights the useful information in the image, and improves the image quality; it overcomes the problems such as color distortion and inconspicuous enhancement effects existing in the existing technology.

Description

technical field [0001] The invention relates to the technical field of digital image processing, and more particularly, to a method and device for enhancing crop leaf images. Background technique [0002] Leaf is the most sensitive organ in the external morphology of crops. According to the complete leaf image, the judgment of crop species, growth status monitoring, and identification of diseases and insect pests can be accurately realized. When collecting crop leaf images in a field environment, due to the influence of interference factors such as complex environment, illumination changes, haze, and weather, the quality of the collected crop leaf images is seriously reduced. Currently, commonly used image enhancement techniques are not very effective in enhancing leaf images. [0003] Now there are mainly several methods for leaf image enhancement. One is to use median filter technology for image enhancement. When the image edge information is more complex, the effect is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50G06T5/20G06T5/00
CPCG06T5/20G06T5/50G06T2207/20224G06T2207/20221G06T2207/10024G06T5/90
Inventor 王志彬王开义潘守慧赵向宇刘忠强韩焱云
Owner BEIJING RES CENT FOR INFORMATION TECH & AGRI
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