Abstract
Among the defect found in the eggs, cracks are the most important in processing and grading table eggs. Eggshell cracks are a food safety concern because micro organism's can contamination of the egg causes pathogens, such as salmonella. Currently, In order to check and eliminate the cracked eggs quickly and exactly in production the process of egg, a non destructive testing system based on Digital Image Processing (DIP) with an efficient algorithm was developed. These algorithms are based on Fuzzy thresholding and SUSAN edge detector. The main advantage of this the method in comparison with other methods is less sensitive to noise, because no derivative operator was used. According to the experimental results, this algorithm had best binerization on the main image in comparison with algorithm Otsu and power law, also the results showed that with add Gaussian noise to the main input image with variable variance between 0.002 and 0.01; the accuracy of detection for proposed algorithm was 97% and 82%, also this algorithm had least value of error function (number of error pixel) on the gray level image toward other algorithms.
Highlights
Crack defections are the most important in processing and grading Table eggs (Brake J., 1997) because the presence of eggshell crack is one of the most influential factors in the quality and price of eggs (Brake J., 1997).Besides, eggshell has great resistance to the entry of micro-organisms
The present study aims at presenting an efficient algorithm for crack detection in eggshell, our approach is based on Fuzzy theresholding and SUSAN edge detector, because SUSAN edge detector used no derivative,compared with other method, this approach is less sensitive to noise and this is considered the main advantage of this method
It has been observed that the SUSAN edge detector works well four algorithms with the Gaussian as well as Poisson noise corrupted images
Summary
Crack defections are the most important in processing and grading Table eggs (Brake J., 1997) because the presence of eggshell crack is one of the most influential factors in the quality and price of eggs (Brake J., 1997).Besides, eggshell has great resistance to the entry of micro-organisms Eggshell cracks are a food safety concern because micro-organisms can allow contamination of the egg cause by pathogens, such as Salmonella (Pourreza R., 2008). If they penetrate in to the shell, the egg will be poisoned and the health of the consumers will be threatened. Developing an algorithm for automatic detection of the defects which lacks disadvantages of human operator work seems necessary. One application of this system may be elimination of defective eggs before reaching the coloring, packaging or sorting stages. This will reduce unnecessary costs and subsequent satisfactions of customers lead to
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