Ultrasonic image enhancing method

PURPOSE: A method for improving an ultrasonic image is provided to obtain accurate diagnosis data by performing a local histogram equalization process for a diagnosis region. CONSTITUTION: A method for improving an ultrasonic image includes an ultrasonic image acquisition process, a diagnosis region detection process, and a local histogram equalization process. The ultrasonic image acquisition process is performed to obtain an ultrasonic image including a diagnosis region(10). The diagnosis region detection process is performed to detect a position and a size of the diagnosis region from the ultrasonic image(20). The local histogram equalization process is performed to increase a dynamic range of a gray level of the diagnosis region(30).