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Digital Photography with Flash and No-Flash Image Pairs Georg Petschnigg Maneesh Agrawala Hugues Hoppe
 

Summary: Digital Photography with Flash and No-Flash Image Pairs
Georg Petschnigg Maneesh Agrawala Hugues Hoppe
Richard Szeliski Michael Cohen Kentaro Toyama
Microsoft Corporation
Orig. (top) Detail Transfer (bottom) Flash No-Flash Detail Transfer with Denoising
No-FlashNo-Flash
FlashFlash
Figure 1: This candlelit setting from the wine cave of a castle is difficult to photograph due to its low light nature. A flash image captures the high-frequency
texture and detail, but changes the overall scene appearance to cold and gray. The no-flash image captures the overall appearance of the warm candlelight,
but is very noisy. We use the detail information from the flash image to both reduce noise in the no-flash image and sharpen its detail. Note the smooth
appearance of the brown leather sofa and crisp detail of the bottles. For full-sized images, please see the supplemental DVD or the project website
http://research.microsoft.com/projects/FlashNoFlash.
Abstract
Digital photography has made it possible to quickly and easily
take a pair of images of low-light environments: one with flash to
capture detail and one without flash to capture ambient illumina-
tion. We present a variety of applications that analyze and
combine the strengths of such flash/no-flash image pairs. Our
applications include denoising and detail transfer (to merge the
ambient qualities of the no-flash image with the high-frequency

  

Source: Agrawala, Maneesh - Department of Electrical Engineering and Computer Sciences, University of California at Berkeley

 

Collections: Computer Technologies and Information Sciences