Plant leaf area lossless measuring method

Abstract

The invention discloses a plant leaf area lossless measuring method. According to the plant leaf area lossless measuring method, a leaf blade image collection method and an indoor leaf area measurement calculation method are mainly used for carrying out measurement and calculation; according to the leaf blade image collection method, a digital camera, a shooting background base plate, coordinate paper, a steel tape and other tools are used as tools, and are easy to operate and convenient to carry, especially when shooting is carried out on the situation that the shooting resolution and the image storage pixel level set when the digital camera leaves the factory are utilized, and the shooting angle is close to 90 degrees, a clear leaf blade image can be obtained, and leaf area measuring accuracy does not have significant difference; according to the indoor leaf area measurement calculation method, the shot leaf blade image is stored in a computer preloaded with AutoCAD software, and the leaf area of a plant is measured and calculated by running the AutoCAD software. Lossless measurement of the leaf area can be achieved by combining the digital camera and the AutoCAD software; compared with a popular leaf area determinator at present, the plant leaf area lossless measuring method has the advantages of being easy and convenient to operate and low in cost.

Description

technical field [0001] The invention relates to a method for measuring plant leaves, in particular to a method for nondestructively measuring the area of ​​plant leaves. Background technique [0002] There are many methods for leaf area measurement, such as grid method, weighing method, leaf area measuring instrument method, coefficient method, and the combination method of counting machine and software. Different methods have different accuracy, measurement range and use occasions. [0003] The grid method is a traditional method of leaf area measurement, which is not only low-cost, but also simple and easy to understand. However, in the measurement process, it is necessary to draw a large number of leaf stem profiles on graph paper and count the area of ​​each leaf. This is a very cumbersome work, and the accuracy of the measurement results is not very high. Especially for some irregularly shaped blades, the accuracy will be reduced and the resulting error will be larger....

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a simple and operational plant leaf area measurement method for the above problems, which can solve the problem of 1, transparent grid method, copy weighing method and leaf area instrument method that need to destroy crop populations. 2. Solve the problem that the current non-destructive measurement of leaf area instrument method is expensive, the measurement range is small, and it is not easy to popularize; 3. Solve the problem that the current simple measurement method of ruler is not accurate enough. 4. Solve the problem of cumbersome steps and difficult to master in the current method of leaf image pixel analysis using Photoshop software