Method and apparatus for lightness imaging

Details Method and apparatus for lightness imaging Method and apparatus for lightness imaging

G - Physics

03

B

354/139, 354/230

G03B 7/28 (2006.01) G03B 7/091 (2006.01)

Patent

CA 1180438

ABSTRACT OF THE DISCLOSURE This invention provides mechanisms and detect the large dynamic range of radiant intensities in the natural environment, that use novel strategies to calculated an approximation of visual properties of objects, and that represent a scene with an image having a specific dynamic range that is optimal for display media such as photography, television and printing. Photographs and other images are made according to the foregoing mechanisms from lightness fields produced from multiple comparisons between information associated with different segmental areas of an image field. Different comparisons involve different groups of segmental areas, and different groupings have at least one spatial parameter different from other grouping of areas. Comparisons advantageously are made in succession with an ordered sequence of the spatial parameter and employing results of prior comparisons.

384770

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