Hd Backgrounds 1080p black for mac love for pc red music for photoshop photos pics wallpapers: Hd Background Videos 1080p black for mac love for pc red music for photoshop photos pics wallpapers

Friday, 15 November 2013

Hd Background Videos 1080p black for mac love for pc red music for photoshop photos pics wallpapers

Hd Background Videos 1080p Wallpapers

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High-definition video is video of higher resolution than is standard. While there is no specific meaning for high-definition, generally any video image with more than 480 horizontal lines (North America) or 570 lines (Europe) is considered high-definition. 720 scan lines is generally the minimum even though many systems greatly exceed that. Images of standard resolution captured at rates faster than normal (60 frames/second North America, 50 fps Europe), by a high-speed camera may be considered high-definition in some contexts.

A number of online video streaming/on demand and digital download services offer HD video, among them YouTube, Vimeo, Hulu, Amazon Video On Demand, Netflix Watch Instantly, and others. Due to heavy compression, the image detail produced by these formats are far below that of broadcast HD, and often even inferior to DVD-Video (3-9 Mbit/s MP2) upscaled to the same image size.

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