1 August 1985 Image Sharpness Enhancement Using Adaptive 3X3 Convolution Masks
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Optical Engineering, 24(4), 244683 (1985). doi:10.1117/12.7973552
Biased Laplacian masks are useful for enhancing the sharpness of edges in images degraded by moderate amounts of blur and noise. Further-more, their implementation on pipelined processors is fast and convenient. However, as we show, they become limited by noise very rapidly. The use of a mask whose bias adapts to local variance measured in 3 X3 windows is explored in this paper. Results demonstrate a significant enhancement of the power of biased Laplacian masks.
Robin N. Strickland, Maged Youssef Aly, "Image Sharpness Enhancement Using Adaptive 3X3 Convolution Masks," Optical Engineering 24(4), 244683 (1 August 1985). https://doi.org/10.1117/12.7973552

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