1. An ultrasonic image processing apparatus for processing a plurality of signals generated based on a signal obtained by scanning an object to be inspected by using an ultrasonic beam and respectively representing pixel values of a plurality of pixels within an ultrasonic image, said apparatus comprising: image processing means for processing the plurality of signals to reduce speckles appearing in the ultrasonic image; and scan converting means for converting a scan format of the plurality of signals processed by said image processing means.