Almost every branch of medical imaging uses the concept of digital image processing for visualizing and extracting details from the data images. Thus, quality enhancement has become more important to be performed with the help of various techniques. The enhancement of an image is one of the most acceptable methods to get the deeper knowledge of any image. There are various contrast enhancement methodologies that are being used for the partitioning of any image. This paper extends the process of contrast enhancement using histogram equalization along with minimization of entropy on the ultrasound images, concentrating on the small and informative part of the image.