It is challenging to capture good photographs in a low-light environment. Flash is often applied to increase the illumination, but flash ruins the natural ambient lighting and makes the scene look flat. Solutions without using flash include prolonging exposure time, enlarging the aperture or using high ISO film (or the equivalent setting for digital cameras). These brighten the image at the expense of image quality. In this paper, we present a method to avoids such problems. Our technique combines multiple photographs, taken under varying flash intensities, to recover the intrinsic ambient scene radiance. From this, we can re-render the scene under an arbitrary shutter speed to create a visually pleasant image. We can also simulate the effects of different white-balance settings, as well as different flash intensities. Experiments show that our method can produce high quality images compared to traditional non-flash solutions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Ambient image recovery and rendering from flash photographs


    Contributors:
    Xiaoping Miao, (author) / Sim, T. (author)


    Publication date :

    2005-01-01


    Size :

    481596 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Ambient Image Recovery and Rendering from Flash Photographs

    Miao, X. / Sim, T. | British Library Conference Proceedings | 2005


    Texture Extraction from Photographs and Rendering with Dynamic Texture Mapping

    Genc, S. / Atalay, V. / IEEE | British Library Conference Proceedings | 1999



    Improving the Retinex algorithm for rendering wide dynamic range photographs [4662-41]

    Sobol, R. / SPIE- the International Society for Optical Engineering / Society for Imaging Science and Technology (IS&T) | British Library Conference Proceedings | 2002