Directional smoothing filter is frequently used in digital image processing for it has the double properties of noise filtering and edge preserving.

方向平滑滤波器兼有去噪和边缘保持的双重特性，在数字图像预处理中被经常采用。

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Fat reduction is another popular surgery, along with stretch marks removal, wrinkle smoothing, double eyelid removal and even botox injections.

抽脂术也是很流行的美容手术，此外，去除妊娠纹、除皱、去双眼皮甚至是注射肉毒杆菌也很受欢迎。

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Fat reduction is another popular surgery, along with stretch marks removal, wrinkle smoothing, double eyelid removal and even botox injections.

抽脂术也是很流行的美容手术，此外，去除妊娠纹、除皱、去双眼皮甚至是注射肉毒杆菌也很受欢迎。

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