Embodiments for enhancing an image quality of an ultrasound image based on entropy information in an ultrasound system are disclosed. In one embodiment, an ultrasound data acquisition unit acquires multiple ultrasound data, and a processing unit forms entropy information based on the multiple ultrasound data and adaptively perform data processing for image enhancement upon the multiple ultrasound data based on the entropy information. The processing unit forms multiple ultrasound images based on the multiple ultrasound data with the data processing performed.
