Ultrasonic image enhancement method

The invention belongs to the technical field of ultrasonic image processing, and discloses an ultrasonic image enhancement method, which comprises the following steps of: performing low-pass filtering on an input image input to obtain a noise-reduced image GaussData; respectively inputting the noise reduction image GaussData into K filters with different filtering radiuses R for filtering enhancement; correspondingly calculating the enhancement quantity of the enhanced images output by different filters relative to the GaussData of the noise reduction image; calculating a fusion enhancement quantity according to the enhancement quantity and a weight coefficient of a corresponding filter; and superposing the fusion enhancement quantity on the noise reduction image GaussData to obtain a fusion enhancement image. Filters with different filtering radiuses are adopted for filtering enhancement, different view ranges are obtained, the larger the view is, the smoother the image is, the smaller the noise is, the smal