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Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio .
Image noise is random variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the image sensor and circuitry of a scanner or digital camera. Image noise can also originate in film grain and in the unavoidable shot noise of an ideal photon detector. Image noise is an undesirable ...
For example, let's say this image was a fair use image: If it were a fair use image (it isn't, it is in the public domain as a work of the U.S. government), then displaying it on one's userspace (or here in the Wikipedia project space) would be against policy. So, alternatively one could still list the image here without actually displaying it.
Personalize your background image, sounds, and toolbar appearance in AOL Desktop Gold. Access your settings to see several options that let you make it your own, such as updating the sounds that you hear, adjusting the colors used, and choosing from any of your own images or the vast Flickr library to personalize your background.
Guide. Administrator guidelines. v. t. e. Images may be deleted on Wikipedia if they do not conform to our image use policy or if they are no longer needed. The purpose of this page is to provide a brief overview of the procedures in place for deleting images or bringing them up for evaluation for inclusion.
A photograph of a neighborhood watch sign is the foreground color while the rest of the image is the background color. In the document-scanning industry, this is often referred to as "bi-tonal". A binary image is one that consists of pixels that can have one of exactly two colors, usually black and white.
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