Comparative analysis of texture feature extraction techniques for rice grain classification

K Robert Singh, S Chaudhury - IET Image Processing, 2020 - Wiley Online Library
IET Image Processing, 2020Wiley Online Library
Classifications of eight different varieties of rice grain are discussed in this study based on
various texture models. Four local texture feature extraction techniques are proposed and
three sets of texture features (SET‐A, SET‐B and SET‐C) are formed, for the classification
task. Performances of the proposed feature sets are compared with the existing techniques
based on, run length matrix, co‐occurrence matrix, size zone matrix, neighbourhood grey
tone difference matrix and wavelet decomposition, towards classification of rice grain using …
Classifications of eight different varieties of rice grain are discussed in this study based on various texture models. Four local texture feature extraction techniques are proposed and three sets of texture features (SET‐A, SET‐B and SET‐C) are formed, for the classification task. Performances of the proposed feature sets are compared with the existing techniques based on, run length matrix, co‐occurrence matrix, size zone matrix, neighbourhood grey tone difference matrix and wavelet decomposition, towards classification of rice grain using a back propagation neural network (BPNN). The proposed techniques are also tested against publicly available data from Brodatz's texture data set and their results are compared with other techniques. The classification accuracy by the BPNN classifier is also compared with other statistical classifiers namely, K‐nearest neighbour, linear discriminant classifier and Naive Bayes classifier. It is found that, the proposed feature sets yield better classification results on both rice data and Brodatz's data. Results show that, feature SET‐B, is able to classify rice grain with an average classification accuracy of 99.63% with a minimum of six features.
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