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The Error-Amended Sharp Edge (EASE) Scheme for Image Zooming

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2 Author(s)
Youngjoon Cha ; Dept. of Appl. Math., Sejong Univ., Seoul ; Seongjai Kim

This paper proposes a new interpolation method, called the error-amended sharp edge (EASE) scheme, which is a modified bilinear method. In order to remove/reduce interpolation artifacts such as image blur and the checkerboard effect (ringing), EASE tries to amend the interpolation error by employing the classical interpolation error theorem in an edge-adaptive fashion. EASE is applied for image zooming by both integer and noninteger magnification factors. The new interpolation scheme has proved to result in high-resolution images having clearer and sharper edges than linear interpolation methods, for all synthetic and natural images we have tested. EASE can be implemented with ease; it turns out to be similarly efficient as cubic interpolation schemes

Published in:

IEEE Transactions on Image Processing  (Volume:16 ,  Issue: 6 )