Image processing apparatus and operating method thereof

PURPOSE: An image processing apparatus and a method for the same are provided to efficiently process volume data. CONSTITUTION: A data obtaining unit (112) obtains volume data including an object model. A depth data obtaining unit (114) obtains depth data indicating a surface depth of the object model about an image plane. An image processing unit (116) obtains processed volume data by processing the volume data based on the depth data. The image processing unit obtains a rendering image based on the processed volume data. A display unit (120) displays the rendering image. [Reference numerals] (112) Data obtaining unit; (114) Depth data obtaining unit; (116) Image processing unit; (120) Display unit; (130) Input unit; (140) Storage unit