The features concerned are such as texture feature, gray histogram feature and features derive form the principle component analysis.

在图像特征提取上改进并提出了三种特征的提取：纹理特征，灰度直方图均值化特征，图像的主成分特征。

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The features concerned are such as texture feature, gray histogram feature and features derive form the principle component analysis.

在图像特征提取上改进并提出了三种特征的提取：纹理特征，灰度直方图均值化特征，图像的主成分特征。

youdao