Automatic adjustment of floating point output images

Details Automatic adjustment of floating point output images Automatic adjustment of floating point output images

2006-07-04

2006-07-04

Tung, Kee M. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S426000, C345S586000, C345S606000, C382S260000, C382S263000

Reexamination Certificate

active

07071947

ABSTRACT:
A system adjusts floating-point-valued images prior to conversion to a display signal so that the dynamic range of the display device is effectively used. Images are adjusted using transfer functions to create an adjusted image within the dynamic range of the display device. The adjusted image also has a frequency distribution of pixel values to maximize the perception of visual detail. The system generates transfer functions from statistical attributes of one or more images. The transfer functions are applied to images on the fly as they are converted into a display signal. The statistical attributes of the image are computed on the fly as it is converted into a display signal. A first transfer function is applied to an image to produce an adjusted image in parallel with the generation of a second transfer function to be applied to a future image.

REFERENCES:
patent: 6510282 (2003-01-01), Ruck et al.
patent: 6650327 (2003-11-01), Airey et al.
patent: 2004/0165086 (2004-08-01), Spitzer et al.

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