Fast bilateral filter for HDR imaging

Bilateral filtering is a method often used in image processing applications. It is specifically useful for HDR algorithms. A novel approach to a fast and close approximation of bilateral filtering is presented. The method is designed especially with a focus on HDR image conversion into a normal color space processing. This paper presents the methods itself, describes the sources of acceleration and discusses the results of the method.

► The algorithm outperforms state of the art bilateral filter methods. ► The dependence between the image area and computing time is linear. ► The approximation accuracy is well beyond the visual system recognition level. ► The algorithm can be easily parallelized.