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Digital processing includes image, audio, video, signal, and data processing. Image and video processing allow for manipulation of data to enhance images or edit videos. Signal processing uses multiplexing for TV and telephone services. Audio processing cleans up audio files and adds digital watermarks. Data processing is used for public safety and research purposes.
The different types of digital processing include image processing, audio processing, video processing, signal processing and data processing. In the most basic terms, this process refers to any manipulation of electronic data to produce a specific effect.
Image processing is perhaps the best known example of digital processing. Used in the web graphics and photography industries, this form of digital processing allows the user to manipulate data in the image to add watermarks, adjust coloring, apply dithering, or perform other tasks to alter or enhance the image. Image processing is closely related to video processing, which takes the process forward, allowing the user to edit and manipulate complete video files. By incorporating multiplexing during video processing, the user can add metadata, such as subtitles or subtitles, which can be retrieved on demand and hidden when not in use.
Multiplexing is also used for signal processing. Digital television and telephone services rely on the use of multiplexing. In television, multiple channels can be provided on one line using this technique. The telephone service industry also relies heavily on digital processing to be able to serve more customers on a limited number of lines.
Audio processing is another form of digital processing that allows the user to clean up or mix audio files. Using various processing techniques, the sound engineer can add tracks to a file, remove background noise, or otherwise enhance audio files. It is also possible to add a digital watermark to audio files for copyright protection. In some cases, audio engineers also add noise to an audio track in a process called dithering, which serves to improve the overall quality of the audio file by smoothing out some of the harsh changes in the audio as sounds move up and down over the shape of the sound. frequency wave. This same technique is also used in image and video processing to smooth out the finished digital images.
Digital processing is also used to manipulate or study data. In some cases, this data processing is used for public safety, such as in case studies of seismic or hurricane activity. Digital data processing provides a much faster and more accurate means of processing data, allowing for longer warning times for impending disasters. It is also used in drug and computer science laboratory research to quickly process the complex calculations that once required hours of intensive research and manual processing.
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