To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

From Wikipedia, the free encyclopedia

An example of pixelation. The image looks smooth when zoomed out, but when a small section is viewed more closely, the eye can distinguish individual pixels.
An example of pixelation. The image looks smooth when zoomed out, but when a small section is viewed more closely, the eye can distinguish individual pixels.

In computer graphics, pixelation (or pixellation in British English) is caused by displaying a bitmap or a section of a bitmap at such a large size that individual pixels, small single-colored square display elements that comprise the bitmap, are visible. Such an image is said to be pixelated (pixellated in the UK).

A diamond without (left) and with (right) anti-aliasing
A diamond without (left) and with (right) anti-aliasing

Early graphical applications such as video games ran at very low resolutions with a small number of colors, resulting in easily visible pixels. The resulting sharp edges gave curved objects and diagonal lines an unnatural appearance. However, when the number of available colors increased to 256, it was possible to gainfully employ anti-aliasing to smooth the appearance of low-resolution objects, not eliminating pixelation but making it less jarring to the eye. Higher resolutions would soon make this type of pixelation all but invisible on the screen, but pixelation is still visible if a low-resolution image is printed on paper.

In the realm of real-time 3D computer graphics, pixelation can be a problem. Here, bitmaps are applied to polygons as textures. As a camera approaches a textured polygon, simplistic nearest neighbor texture filtering would simply zoom in on the bitmap, creating drastic pixelation. The most common solution is a technique called pixel interpolation that smoothly blends or interpolates the color of one pixel into the color of the next adjacent pixel at high levels of zoom. This creates a more organic, but also much blurrier image. There are a number of ways of doing this; see texture filtering for details.

Pixelation is a problem unique to bitmaps. Alternatives such as vector graphics or purely geometric polygon models can scale to any level of detail. This is one reason vector graphics are popular for printing – most modern computer monitors have a resolution of about 100 dots per inch, and at 300 dots per inch printed documents have about nine times as many pixels per unit of area as a screen. Another solution sometimes used is procedural textures, textures such as fractals that can be generated on-the-fly at arbitrary levels of detail.

The zoomed portion of the cat image above, resized using nearest neighbor (left) and with Adobe Photoshop's bicubic resampling, which uses pixel interpolation (right). The interpolated image has no sharp edges, but is considerably blurrier.
The zoomed portion of the cat image above, resized using nearest neighbor (left) and with Adobe Photoshop's bicubic resampling, which uses pixel interpolation (right). The interpolated image has no sharp edges, but is considerably blurrier.

YouTube Encyclopedic

  • 1/3
    Views:
    146 182
    557 371
    1 531 400
  • ✪ AMD Support: How to Troubleshoot Checkerboard Pattern Display Corruption
  • ✪ Improve Visual Quality by Running your Monitor at a Non-Native Resolution
  • ✪ What Is Reality? [Official Film]

Transcription

Deliberate pixelation

In some cases, the resolution of an image or a portion of an image is lowered to introduce pixelation deliberately. This effect is commonly used on television news shows to obscure a person's face or to censor nudity or vulgar gestures, and is also used for artistic effect. This effect is called pixelization. Making pixels easily visible is also a main feature in pixel art which is where the graphics are made in low resolutions for effect.

See also

External links

This page was last edited on 7 May 2020, at 16:38
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.