Enhanced interpolation method for enlargement of mammogram images

Breast cancer is the most prevalent disease among women and mammography is the main test used for screening and early diagnosis. During analysis, physicians often enlarge an image to view a part in order to pick up clue and details about the disease. Interpolation is a technique used for this purpose. The interpolation has several drawbacks like producing zigzag artifacts, blurring effect and jagged image edges in the interpolated images. This paper proposes a hybrid method that combines bicubic interpolation method and undeciminated wavelet transformation that interpolates an image in a way that preserves the edge and detail region of the input. Experimental results show that the proposed method is efficient and the performance is favorable compared with the existing techniques both in visual, edge and structural quality.