Multi-scale toggle operator for constructing image sharpness measure |
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Authors: | Xiangzhi Bai Fugen Zhou Bindang Xue |
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Institution: | Image Processing Center, Beijing University of Aeronautics and Astronautics, 100191 Beijing, China |
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Abstract: | To construct effective image sharpness measure with good discrimination ability, a multi-scale toggle operator based algorithm is proposed in this paper. Firstly, toggle operator is used to extract image details. And, the multi-scale theory is used in toggle operator to extract multi-scale image details. Then, the final image details are obtained through applying the pixel-wise maximum operation on the extracted multi-scale image details. Finally, the mean value of the obtained final image details is used as the constructed image sharpness measure. Experimental results on different images show that, the proposed image sharpness measure could correctly quantify the clarity of image and is suitable for discriminating the image clarity change. |
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