该方法首先对粒状材料试样的原始数字图像进行增强，以消除噪声干扰。

By use of this method, the digital images of dense samples were firstly enhanced to clear the noises.

youdao

该方法首先对粒状材料试样的原始数字图像进行增强，以消除噪声干扰。

By use of this method, the digital images of dense samples were firstly enhanced to clear the noises.

youdao