This paper presents a method for detecting ship wakes in SAR images based on the localization of Radon transform. Firstly

the image is normalized

and the noticeable pixel would be regarded as a constant. In localized radon space a big number will correspond to a long line segment. An appropriate threshold can decrease false alarm. By choosing appropriate structuring elements

i.e. dilation and erosion lengths

the two responses which are close enough in the vertical direction will be joined into one. The effect of erosion is that responses which are too narrow in the vertical direction will disappear entirely while responses which are wide enough will be contracted vertically.The simulation and real data processing results show that the algorithm is successful in wake features detection

wake location and computational efficiency.