Study About Dairy Cow Type Linear Appraisal Based On Image Processing

摘要

The technology of image processing is to use computer and other corresponding digital technology to make some operation and processing to image, consequently arrive some given purpose. The technology of image processing is used in dairy cow type linear appraisal. The development tool of system software is NI IMAQ Vision and NI Lab Windows/CVI 6.0. Panasonic WV-CP240/G color camera acquires dairy cow picture, and converts it into digital image file, image file are inputted computer by color image acquisition board. Noise is eliminated effectively by median filtering. To make dairy cow feature points located accurately, Discrete Fourier Test (DFT) is used to make image enhance in image preprocessing. Make linear appraisal to most traits of dairy cow through measuring the distance between two points or angle among three points. The experimental results show that this system has high speed and meets the need of the precision. It may replace manual evaluation in practice.