Image Processing based Software for Determination of Size and related Physical Properties of Various Grains

摘要

The morphological properties of agricultural commodities, such as size, shape, colour etc. are required in various agricultural applications including quality assessment, crop/ variety identification and design of machinery. Manual measurement of these attributes is arduous, time taking and often not so accurate. An approach based on image processing has been developed as computer software. This approach is a rapid, non-invasive, and quantitative. The software reads an image, taken using flatbed scanner, preferably in TIFF (tagged image file format), and instantaneously provides the physical parameters to an accuracy of 0.1 mm. The aim of the present work was to ascertain accuracy and precision of the developed software by calibration through a known size of the obj ect. The software has been tested on many images of variety grains and results are found to be in agreement with the manual methods. In the case of length and width, the RMSE average values found to be 0.36 and 0.33, respectively.