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Dynamic range compression by edge-preserving filtering

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1 Author(s)
Yiu-Fai Wong ; Div. of Eng., Texas Univ., San Antonio, TX, USA

Dynamic range compression is useful for displaying and enhancing images. It is common to subtract a mask from a given image to enhance the details. The trick is how to obtain a good mask. The authors describe how an edge-preserving filter can be used to generate a mask that is smooth over areas with fine details, yet preserves most of the edges. Experiments with real images show that the scheme is effective for this task.<>

Published in:

Signal Processing Letters, IEEE  (Volume:1 ,  Issue: 11 )