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New features such as automatic lighting controls, real-time enhancements (retouching, wrinkle smoothing and vertical stretch), automatic face tracking and autofocus, assist users by providing substantial ease-of-use, further increasing the popularity of webcams.

Webcam features and performance can vary by program, computer operating system, and also by the computer's processor capabilities.

The video streams provided by webcams can be used for a number of purposes, each using appropriate software: Most modern webcams are capable of capturing arterial pulse rate by the use of a simple algorithmic trick.

Researchers claim that this method is accurate to ±5 bpm.

Some of them, for example, those used as online traffic cameras, are expensive, rugged professional video cameras.

making them the lowest-cost form of videotelephony.

ERA-Net Smart Grids Plus is an initiative of 21 European countries and regions.

The vision for Smart Grids in Europe is to create an electric power system that integrates renewable energies and enables flexible consumer and production technologies.

A webcam is a video camera that feeds or streams its image in real time to or through a computer to a computer network.Various software tools in wide use can be employed for this, such as Pic Master (for use with Windows operating systems), Photo Booth (Mac), or Cheese (with Unix systems).For a more complete list see Comparison of webcam software.Video calling support has also been added to several popular instant messaging programs. Software is available to allow PC-connected cameras to watch for movement and sound, a computer e-mailed images of the burglar during the theft of the computer, enabling the owner to give police a clear picture of the burglar's face even after the computer had been stolen.Unauthorized access of webcams can present significant privacy issues (see "Privacy" section below).

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