Summary
Local adaptive filters for image restoration (denoising and deblurring), enhancement and target location are described. The filters work in the domain of an orthogonal transform (DFT, DCT or other transforms) in a moving window and nonlinearly modify the transform coefficients to obtain an estimate of the central pixel of the window. A framework for the filter design for multi-component images is presented and experimental results in denoising, enhancement and deblurring monochrome and color images, and in target location are provided. Also discussed is the filter implementation for a window size of 3 × 3 pixels in the form of five-channel convolution with masks implementing the local mean and four directional Laplacians: horizontal, vertical, and two (±45°) diagonal ones.
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© 1999 Springer-Verlag Berlin Heidelberg
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Yaroslavsky, L. (1999). Image Restoration, Enhancement and Target Location with Local Adaptive Linear Filters. In: Asakura, T. (eds) International Trends in Optics and Photonics. Springer Series in OPTICAL SCIENCES, vol 74. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-48886-6_9
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DOI: https://doi.org/10.1007/978-3-540-48886-6_9
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-662-14212-7
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