Blending a graphic (Patent): Difference between revisions
From ETHW
m (Blending a graphic moved to Blending a graphic (Patent)) |
No edit summary |
||
Line 1: | Line 1: | ||
== Abstract == | == Abstract == | ||
A graphic and video are blended by controlling the relative transparency of corresponding pixels in the graphic and the video through the use of blending coefficients. One example of a blending coefficient is an alpha signal used in conjunction with a keyer. The value of a blending coefficient for a pixel in the graphic is based on the luminance and chrominance characteristics of a neighborhood of pixels in the video. Inclusions and exclusions are set up which define how the neighborhood of pixels is used to create or change a particular blending characteristic. | A graphic and video are blended by controlling the relative transparency of corresponding pixels in the graphic and the video through the use of blending coefficients. One example of a blending coefficient is an alpha signal used in conjunction with a keyer. The value of a blending coefficient for a pixel in the graphic is based on the luminance and chrominance characteristics of a neighborhood of pixels in the video. Inclusions and exclusions are set up which define how the neighborhood of pixels is used to create or change a particular blending characteristic. | ||
[[Media:Blending a graphic.pdf]] | [[Media:Blending_a_graphic.pdf|Media:Blending a graphic.pdf]] | ||
[[Category:Culture_and_society]] | [[Category:Culture_and_society]] [[Category:Law_&_government|Category:Law_&_government]] [[Category:Patents]] [[Category:Communications]] [[Category:Broadcasting]] [[Category:TV_broadcasting]][[Category:News]] | ||
[[Category:Law_ | |||
[[Category:Patents]] | |||
[[Category:Communications]] | |||
[[Category:Broadcasting]] | |||
[[Category:TV_broadcasting]] |
Revision as of 16:25, 3 August 2009
Abstract
A graphic and video are blended by controlling the relative transparency of corresponding pixels in the graphic and the video through the use of blending coefficients. One example of a blending coefficient is an alpha signal used in conjunction with a keyer. The value of a blending coefficient for a pixel in the graphic is based on the luminance and chrominance characteristics of a neighborhood of pixels in the video. Inclusions and exclusions are set up which define how the neighborhood of pixels is used to create or change a particular blending characteristic.