Three feature sets were adopted, including 20 global features, 10 statistical histogram features and 3 color features.

即20个综合性特征、10个统计性直方图特征和3个颜色特征。

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Methods Ultrasonic images of fatty and normal liver were identified by adopting texture analysis with statistical features and getting features parameter from gray histogram.

方法采用纹理分析法，从灰度直方图中提取特征参数，对脂肪肝和正常肝脏B超图像进行识别。

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