Rain streak removal using under-/over-exposed images

When we take a photograph in outdoors, which is often having unexpected rain streaks and under-/over-exposed pixels in bright and dark regions. To address these problems, we introduce a new blending method based on multi-scale image decomposition for an image sequence taken with varying exposure time. Specifically, under-/over-exposed images are blended for extending the dynamic range of pixels in the wavelet domain, while removing rain streaks.