Pear fruit transverse and longitudinal diameter measuring method based on image processing

Abstract

The invention provides a pear fruit transverse and longitudinal diameter measuring method based on image processing. The method comprises steps of collecting pear surface images at different angles through a camera device; dividing pixels in the preprocessed image into a background class and a target class, and calculating the transverse and longitudinal diameter lengths of the pear fruit in the image according to the sum of the gray values of each row and each column of pixel points in the image, analyzing the images at multiple angles, taking the maximum value, the minimum value, the averagevalue and the maximum value of the longitudinal diameter of the transverse diameter, and finally converting the character type character into the numerical type character to obtain the actual transverse and longitudinal diameter of the pear fruit. According to the method, a machine is adopted for image acquisition and data measurement; measuring efficiency is higher, pear fruit data at multiple angles are collected, the measurement precision is better, excessive manual intervention is not needed, the measurement cost is lower, efficient and large-scale pear fruit transverse and longitudinal diameter data collection can be achieved, a good data guarantee is provided for pear germplasm phenotypic data research, and a theoretical basis is provided for accurate description and efficient utilization of pear germplasm resources.

Description

technical field [0001] The invention belongs to the field of image processing, in particular to a method for measuring the transverse and longitudinal diameters of pear fruits based on image processing. Background technique [0002] Pear is the third largest fruit in my country. Its planting area and output are the largest in the world. As the largest pear production and consumption country in the world, it is also the country with the most abundant pear germplasm resources. Chinese researchers have conducted research on pear resources. Researching widely. Phenotypic diversity is an important research content of biodiversity. It mainly studies the phenotypic variation of populations in various environments in its distribution area. Research and analysis of phenotypic diversity of pear germplasm resources is helpful to understand pear germplasm resources The genetic development mechanism of traits is beneficial to the evaluation and excavation of pear germplasm resources and ...

AI Technical Summary

Problems solved by technology

[0004] The transverse and longitudinal diameters of pear fruits are the key characteristics reflecting the size of pear fruits. At present, the transverse and longitudinal diameter data of pear fruits are mainly obtained through manual measurement. However, it is difficult to achieve high-efficiency and large-scale measurement work, and the data obtained by manual measurement has large errors, and the measurement quantity and measurement accuracy are far from enough. and the study of coefficient of variation

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