Title :
Dynamic range compression by edge-preserving filtering
Author_Institution :
Div. of Eng., Texas Univ., San Antonio, TX, USA
Abstract :
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.<>
Keywords :
filtering and prediction theory; image processing; display; dynamic range compression; edge-preserving filter; edge-preserving filtering; enhancing; mask; real images; Displays; Dynamic range; Filtering; Filters; Image coding; Image enhancement; Layout; Magnetic films; Magnetic resonance imaging; Printers;
Journal_Title :
Signal Processing Letters, IEEE
