what is ANTIALIASING?

Question

i'm a game translator, help me to find out the clear definition of ANTIALIASING and stuffs like what this factor is and whatever,

Answer 1

Anti-aliasing is the technique where a non-vertical / non-horizontal line is drawn with multiple shades of a color to give the impression of smoothness.

See webopedia.com for technical definitions.

Answer 2

In computer graphics, antialiasing is a software technique for diminishing jaggies - stairstep-like lines that should be smooth. Jaggies occur because the output device, the monitor or printer, doesn't have a high enough resolution to represent a smooth line. Antialiasing reduces the prominence of jaggies by surrounding the stairsteps with intermediate shades of gray (for gray-scaling devices) or color (for color devices). Although this reduces the jagged appearance of the lines, it also makes them fuzzier.
Another method for reducing jaggies is called smoothing, in which the printer changes the size and horizontal alignment of dots to make curves smoother.

Antialiasing is sometimes called oversampling.

Answer 3

The computer image is made of pixels. If you have diagonal line drawn on a screen you'll see its pixels. The smaller the monitor resolution is the easier you'll see the pixels. Antialiasing is a way to smooth these pixels so that the viewer can see the smooth line. It's a way to improve the quality of the image.
http://en.wikipedia.org/wiki/Anti-aliasing

Answer 4

Draw a diagonal line on a monitor and you can see that the edges appear jagged and more so with LCD monitors. Antialiasing changes colours of adjacent pixels, via some averaging process, to make the jagged edges less apparent.

Answer 5

In digital signal processing, anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution signal at a lower resolution. Anti-aliasing is used in digital photography, computer graphics, digital audio, and many other domains.

In the image domain, aliasing artifacts can appear as wavy lines or bands, or moiré patterns, or popping, strobing, or as unwanted sparkling; in the sound domain, as rough, inharmonic, or spurious tones, or as noise.

Anti-aliasing means removing signal components that have a higher frequency than is able to be properly resolved by the recording (or sampling) device. This removal is done before (re-)sampling at a lower resolution. When sampling is performed without removing this part of the signal, it causes undesirable artifacts such as the black-and-white noise near the top of figure 1-a.

In signal acquisition and audio, anti-aliasing is often done using an analog anti-aliasing filter to remove the out-of-band component of the input signal prior to sampling with an analog-to-digital converter. In digital photography, optical anti-aliasing filters are made of birefringement materials, and smooth the signal in the spatial optical domain. The anti-aliasing filter essentially blurs the image slightly in order to reduce resolution to below the limit of the digital sensor (the larger the pixel pitch, the lower the achievable resolution at the sensor level).

See the articles on signal processing and aliasing for more information about the theoretical justifications for anti-aliasing; the remainder of this article is dedicated to anti-aliasing methods in computer graphics.

Answer 6

In digital signal processing, anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution signal at a lower resolution. Anti-aliasing is used in digital photography, computer graphics, digital audio, and many other domains.

In the image domain, aliasing artifacts can appear as wavy lines or bands, or moiré patterns, or popping, strobing, or as unwanted sparkling; in the sound domain, as rough, inharmonic, or spurious tones, or as noise.

Anti-aliasing means removing signal components that have a higher frequency than is able to be properly resolved by the recording (or sampling) device. This removal is done before (re-)sampling at a lower resolution. When sampling is performed without removing this part of the signal, it causes undesirable artifacts such as the black-and-white noise

In signal acquisition and audio, anti-aliasing is often done using an analog anti-aliasing filter to remove the out-of-band component of the input signal prior to sampling with an analog-to-digital converter. In digital photography, optical anti-aliasing filters are made of birefringement materials, and smooth the signal in the spatial optical domain. The anti-aliasing filter essentially blurs the image slightly in order to reduce resolution to below the limit of the digital sensor (the larger the pixel pitch, the lower the achievable resolution at the sensor level).

See the articles on signal processing and aliasing for more information about the theoretical justifications for anti-aliasing; the remainder of this article is dedicated to anti-aliasing methods in computer graphics.


sorry reign...you beat me to it!