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We present an automatic focus area estimation method, working with a single image without a priori information about the image, the camera, or the scene. It produces relative focus maps by localized blind deconvolution and a new residual error-based classification. Evaluation and comparison is performed and applicability is shown through image indexing.
Transform methods, feature representation, indexing methods, sharpening and deblurring, video retrieval.

L. Kov?cs and T. Szir?nyi, "Focus Area Extraction by Blind Deconvolution for Defining Regions of Interest," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 29, no. , pp. 1080-1085, 2007.
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