To add full-screen, full-motion video to your multimedia project, you will need to invest in specialized hardware and software or purchase the services of a professional video production studio. In many cases, a professional studio will also provide editing tools and post-production capabilities.
The video for windows is an external set of software works along with multimedia extension for windows. It has the feature for digitized video recording, playback and Editing. The video cap utility of this software is used to capture the video and audio clips using external hardware. The captured sequence can be viewed in a number of different size and speed and also different colour palates can be created for individual frame. Video for windows has four different types of editing features named as Video Edit, PalEdit, Waved it and BitEdit. As the name suggests
Video Edit is used to cut and paste captured video segments together,
Wav Edit is the feature which work with the recorded digital audio and helps you to edit it.
Pal Edit is the work with the colour plates within the captured video to improve the colour,
Bit Edit helps clean up the rough patches in the images. It also has the interface to the media control panel to control digital video files.
Compositions: Composition is at the heart of making attractive video, because it focuses not on things like story line and plot development, or even the more technical issues of color balance, lighting and audio levels. Rather, composition is all about the placement of your subject(s) in the frame so that the effect is as pleasing to the eye as possible.
Video Compression: Video takes up a lot of space. Uncompressed recording from a camcorder takes up about 17MB per second of video. Because it takes up so much space, video must be compressed before it is used. “Compressed” means that the information is packed into a smaller space. There are two kinds of compression: lossy and lossless.
Lossy compression: Lossy compression means that the compressed file has less data in it than the original file. In some cases this translates to lower quality files, because information has been “lost”. Lossy compression makes up for the loss in quality by producing comparatively small files. For example, DVDs are compressed using the MPEG-2 format, which can make files 15 to 30 times smaller, but we still tend to perceive DVDs as having high-quality picture.
Lossless compression: Lossless compression is exactly what it sounds like, compression where none of the information is lost. This is not nearly as useful because files often end up being the same size as they were before compression as reducing the file size is the primary goal of compression. However, if file size is not an issue, using lossless compression will result in a perfect-quality picture. For example, a video editor transferring files from one computer to another using a hard drive might choose to use lossless compression to preserve quality while he or she is working.
Lighting:Perhaps the greatest difference between professional camcorders and consumer camcorders is their ability to perform at low light levels. Using a simple floodlight kit, or even just being sure that daylight illuminates the room, can improve your image. Onboard battery lights for camcorders can be useful but only in conditions where the light acts as a "fill light" to illuminate the details of a subject's face. The standard lighting arrangement of a studio is displayed with fill, key, rim, and background lights. Changing any of these lights can make a dramatic difference in the shot.
Chroma keys: Chroma keys allow you to choose a color or range of colors that become transparent, allowing the video image to be seen 'through" the computer image. This is the technology used by a newscast's weather person, who is shot against a blue background that is made invisible when merged with the electronically generated image of the weather map.
Blue screen: Blue screen is a popular technique for making multimedia titles because expensive sets are not required. Incredible backgrounds can be generated using 3-D modeling and graphic software, and one or more actors, vehicles, or other objects can be neatly layered onto that background.
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