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Method for quantitatively measuring green leaf rate of herbaceous plant quickly based HSV color space

A herbaceous plant and color space technology, applied in the field of herbal plant green leaf rate measurement, can solve the problems of high cost, poor repeatability, low efficiency, etc., achieve fast and accurate acquisition, reliable results, and avoid strong interference

Inactive Publication Date: 2017-04-19
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of poor repeatability, low efficiency or high cost in the measurement method of green leaf ratio of herbal plants in the prior art, and provide a method for quickly quantitatively measuring the green leaf ratio of herbal plants based on HSV color space

Method used

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  • Method for quantitatively measuring green leaf rate of herbaceous plant quickly based HSV color space
  • Method for quantitatively measuring green leaf rate of herbaceous plant quickly based HSV color space
  • Method for quantitatively measuring green leaf rate of herbaceous plant quickly based HSV color space

Examples

Experimental program
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Effect test

Embodiment 1

[0035] (1) Use a digital camera to obtain photos of the sample square;

[0036] At 7:00 on the morning of December 11, 2015, the evergreen Hemerocallis sample was photographed with a SLR camera kit with a model of CANON EOS 60D produced by Japan’s Canon Company and a lens of 18-135mm. The specific method is: the digital camera Fixed on the camera stand, the height is adjusted to 1.2m, the lens is facing down, and the light shield is used to ensure that the light and height of the image shooting are basically the same. The shooting parameters of the camera are: Aperture priority shooting is adopted, the lens is adjusted to 18mm, the shooting method is continuous shooting, and the pixel size is 5184×3456;

[0037] (2) Adobe Photoshop software is used to preprocess the photos obtained in step (1), and a representative part of the image is intercepted and saved. The specific method is: the computer operating environment is MAC OS X Yosemite, and the version is 10.10.5. Open the p...

Embodiment 2

[0050] (1) Use a digital camera to obtain photos of the sample square;

[0051] At 7:00 am on January 8, 2016, the evergreen Hemerocallis sample was photographed with a SLR camera kit with a model of CANON EOS 60D and a lens of 18-135mm produced by Canon Corporation of Japan. The specific method is: the digital camera Fixed on the camera stand, the height is adjusted to 1.2m, the lens is facing down, and the light shield is used to ensure that the light and height of the image shooting are basically the same. The shooting parameters of the camera are: Aperture priority shooting is adopted, the lens is adjusted to 18mm, the shooting method is continuous shooting, and the pixel size is 5184×3456;

[0052] (2) Adobe Photoshop software is used to preprocess the photos obtained in step (1), and a representative part of the image is intercepted and saved. The specific method is: the computer operating environment is MAC OS X Yosemite, and the version is 10.10.5. Open the photo in s...

Embodiment 3

[0060] (1) Use a digital camera to obtain photos of the sample square;

[0061] At 7:00 a.m. on February 3, 2016, the evergreen daylily sample was photographed with a SLR camera kit with a model of CANON EOS 60D produced by Japan’s Canon Company and a lens of 18-135mm. The specific method is: the digital camera Fixed on the camera stand, the height is adjusted to 1.2m, the lens is facing down, and the light shield is used to ensure that the light and height of the image shooting are basically the same. The shooting parameters of the camera are: Aperture priority shooting is adopted, the lens is adjusted to 18mm, the shooting method is continuous shooting, and the pixel size is 5184×3456; the obtained photos are figure 2 .

[0062] (2) Adobe Photoshop software is used to preprocess the photos obtained in step (1), and a representative part of the image is intercepted and saved. The specific method is: the computer operating environment is MAC OS X Yosemite, and the version is...

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Abstract

The invention relates to a method for measuring the green leaf rate of herbaceous plant, and aims at providing a method for quantitatively measuring the green leaf rate of herbaceous plant quickly based the HSV color space. The method comprises the steps: obtaining a quadrat picture through a digital camera; carrying out the preprocessing of the quadrat picture, cutting a representative part in the picture, and storing the representative part; storing the picture in Matlab software, and converting the image into an HSV mode; defining a color section where green leaves are located in the picture as a target color section, and setting the component range of the target color section; carrying out the traversal of all pixels in the picture, and judging whether the pixels are located in the target color section or not; carrying out the statistics and calculation so as to obtain the green leaf rate of a region corresponding to the quadrat picture. The method can save a great amount of manpower and a great number of material resources, is simple and convenient, is reliable in result, and can quickly and accurately obtains the information of the green leaf rate of the herbaceous plant. The method irons out the defects that a conventional method for measuring the green leaf rate of herbaceous plant is poor in subjectivity, roughness and repeatability and the cost is high when professional software is used for digital image processing and measurement.

Description

technical field [0001] The invention relates to a method for measuring the green leaf ratio of herbaceous plants, in particular to a method for rapidly quantitatively measuring the green leaf ratio of herbal plants based on HSV color space using digital image technology. Background technique [0002] The green leaf rate is the main index to describe the green period of herbaceous plants, and the green period is one of the important standards to measure the ornamental characters of herbaceous plants, especially turfgrass and ground cover plants. In addition, the green leaf rate is also an indispensable morphological index in the evaluation of herbaceous plant resistance to abiotic stress. In recent years, various studies involving landscape evaluation of ornamental plants and resistance to abiotic stress have continued to deepen. However, the basic connotation and measurement methods of green leaf ratio have not received enough attention, and there are problems such as vague ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/40G01B11/00
CPCG01B11/00
Inventor 李丹青夏宜平张佳平李康张娇
Owner ZHEJIANG UNIV
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