To solve the problem that optical image segmentation method is not suitable for SAR image and cannot obtain the accurate segmentation results

which is affected by synthetic aperture radar image′speckle noise

a SAR image segmentation method based on G statistical model and level set is presented in this paper.Firstly

a energy mapping function based on G statistical model is defined to instead of pixel values for subsequent image processing

which can reduce the speckle noise′influence;Secondly

using level set method to finish images′segmentation

this article uses a more simple energy function which is easy to be used to deal with multiregion SAR images′ segmentation.Experimental results show that this method can reduce speckle noise′influence in SAR image segmentation process

and has better accuracy and adaptive.