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In digital imaging, a pixel (picture element) is the smallest piece of information in an image. Pixels are normally arranged in a regular 2-dimensional grid, and are often represented using dots, squares, or rectangles. Each pixel is a sample of an original image, where more samples typically provide a more accurate representation of the original. The intensity of each pixel is variable; in color systems, each pixel has typically three or four components such as red, green, and blue, or cyan, magenta, yellow, and black.

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Wikipedia about megapixels

Pixel-example.png

Closeup%20of%20pixels.JPG

In digital imaging, a pixel (picture element) is the smallest piece of information in an image. Pixels are normally arranged in a regular 2-dimensional grid, and are often represented using dots, squares, or rectangles. Each pixel is a sample of an original image, where more samples typically provide a more accurate representation of the original. The intensity of each pixel is variable; in color systems, each pixel has typically three or four components such as red, green, and blue, or cyan, magenta, yellow, and black.

The word pixel is based on a contraction of pix (for "pictures") and el (for "element"); similar formations with el for "element" include voxel, luxel,Fact: date=June 2008 and texel.

Etymology

The word pixel was first published in 1965 by Frederic C. Billingsley of JPL, to describe the picture elements of video images from space probes to the moon and Mars; but he did not coin the term himself, and the person he got it from (Keith E. McFarland at the Link Division of General Precision in Palo Alto) does not know where he got it, but says it was "in use at the time" (circa 1963).

The word is a combination of picture and element, via pix. Pix was first coined in 1932 in a Variety magazine headline, as an abbreviation for the word pictures, in reference to movies; by 1938 pix was being used in reference to still pictures by photojournalists.

The concept of a picture element dates to the earliest days of television, for example as Bildpunkt (the German word for pixel, literally picture point) in the 1888 German patent of Paul Nipkow. According to various etymologies, the earliest publication of the term picture element itself was in Wireless World magazine in 1927,though it had been used earlier in various U.S. patents filed as early as 1911.1

Some authors explain pixel as picture cell, as early as 1972.

A detailed history of pixel and picture element, with references, is linked below.

In video processing, Pel is often used instead of pixel. For example, IBM used it in their Technical Reference for the original PC.

Words with similar etymologies

Texel (texture element) and Luxel (Lux Element) are words used to describe a pixel when it is used in specific context (texturing and light mapping respectively)

Search results for Megapixels

Megapixels | DigicamGuides.com

A plain-English definition of megapixels. Find out how many you will need for the types of photos you want to take. ... captures 4 megapixels (2 pixels for ...www.digicamguides.com/learn/megapixels.html

What is a Megapixel?

Brief and Straightforward Guide: What is a Megapixel? ... That is, the resulting image will be made up of 3.1 megapixels, or over three million dots. ...www.wisegeek.com/what-is-a-megapixel.htm

The myth of maximum megapixels

Most people believe that when it comes to digital cameras, more megapixels is better. That's not always true. ... Megapixels don't matter anymore. ...www.computerworld.com/action/article.do?command=printArticle...

Design215 megapixels comparison and maximum print size charts

... as the print size doubles, the megapixels required increases geometrically. ... using this chart to say that more mega-pixels than X isn't needed or desirable. ...www.design215.com/toolbox/megapixels.php

Megapixel.net

Monthly digital camera web magazine featuring articles, reviews, forums, classifieds, and other information.www.megapixel.net/

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News about Megapixels

Canon U.S.A. Introduces the Highly Anticipated EOS 5D Mark II DSLR Camera Featuring Full-Frame HD Video Capture

wallstreet:online AGCanon U.S.A., Inc., a leader in digital imaging, today introduced the EOS 5D Mark II Digital SLR camera,http://www.wallstreet-online.de/nachrichten/nachricht/254102...

Canon U.S.A. Combines Advanced Technology with a Professional Style Design in Its Latest Addition of High-End G-Series ...

Centre Daily TimesCanon U.S.A., a leader in digital imaging, today announced the newest addition to its top-of-the line PowerShot G-series digital cameras. The PowerShot G10 digital camera offers serious amateur shooters and professional photographers several essential ingredients for a flagship model, including Canon's new DIGIC 4 image processor, 28mm Optical Image Stabilized lens and RAW mode. This trilogy of .....http://www.centredaily.com/business/technology/story/845124....

Canon U.S.A. Introduces the Highly Anticipated EOS 5D Mark II DSLR Camera Featuring Full-Frame HD Video Capture

Centre Daily TimesCanon U.S.A., Inc., a leader in digital imaging, today introduced the EOS 5D Mark II Digital SLR camera, the long-awaited successor to Canon's highly popular EOS 5D, introduced in 2005. Building upon the qualities that made the EOS 5D camera so successful, Canon has coupled the creative power of a full-frame CMOS sensor in a relatively compact and affordable camera body, together with ...http://www.centredaily.com/business/technology/story/845126....

Canon 5D Mark II Officially Awesome: 21MP DSLR First to Shoot Full HD Video [Canon 5D Mark II]

GizmodoEasily the most anticipated camera in the galaxy, Canon's 5D Mark II is official, and officially excellent. The full-frame, 21-megapixel DSLR is the first to shoot full HD video, and with Digic 4,...http://gizmodo.com/5050899/canon-5d-mark-ii-officially-aweso...

Casio Goes Slo-Mo with Exilim EX-FH20

AnandTechCasio's EX-FH20 shoots burst and slow motion video DSLRS will be jealous of...http://www.dailytech.com/article.aspx?newsid=12974

News about Megapixels

No need for point-and-shoot? Not quite yet

MSNBCThere’s a lot more that goes into creating a good digital camera than just having a high number of megapixels,” said Rubin. “There’s the size of the sensor, the strength of the flash, features such as image stabilization and smile detection ... http://www.msnbc.msn.com/id/27087631/

Joshua Goldman

CNET News ... also Manual and Program modes for those that want to experiment with shutter and aperture settings as well as color, white balance, exposure compensation and metering, and ISOs up to 6,400 (though it and ISO 3,200 are available only at 3.1 megapixelshttp://news.cnet.com/8300-17938_105-1.html?authorId=9995976

Read all '"sony alpha"' posts in Crave

CNET NewsSony's flagship Alpha, just shy of 25 megapixels, puts pixel count in the driver's seat. In contrast, Nikon's 12-megapixel D3 emphasizes bigger pixels with good low-light performance. Another advantage of full-frame cameras is that lenses owned by ... http://news.cnet.com/8300-17938_105-1.html?keyword=%22sony+a...

T-Mobile And HTC Hope To Sell 500,000 G1s in Q4

Eflux MediaThe G1's digital camera, notably, is 3.2 megapixels, while the iPhone's is only 2 megapixels. The G1's battery life, unfortunately, is only about 130 hours standby and base memory of the G1 is 1 gigabyte (1 GB). The G1's memory can be expanded to 8 ... http://www.efluxmedia.com/news_T_Mobile_And_HTC_Hope_To_Sell...

Samsung Innov8 Up Close

PC World BlogsWhat frustrates me is that higher quality cell phone camera technology clearly exists--and has for quite some time--and yet in the U.S. market, anything above a paltry 3 megapixels is rare and added only to top-of-line models that are priced out of ... http://blogs.pcworld.com/staffblog/archives/007873.html

Search results for Megapixels

The Megapixel Myth

Sharpness depends more on your photographic skill than the number of megapixels, because most people's sloppy technique or subject motion blurs the image more than the width of a ... http://www.kenrockwell.com/tech/mpmyth.htm

Megapixels definition of Megapixels in the Free Online Encyclopedia.

One million pixels. Refers to the resolution of a digital imaging device (monitor, scanner, video camera, still camera, etc.). For example, a five-megapixel digital still camera ... http://encyclopedia2.thefreedictionary.com/Megapixels

Megapixels and print size

If you want to make large sized prints, use your megapixels. ... Megapixels and print size Suggested number of megapixels for high quality printshttp://www.digicamhelp.com/processing-photos/printing/print-...

Megapixels - definition of Megapixels by the Free Online Dictionary ...

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.http://www.thefreedictionary.com/Megapixels

Counting

Counting Megapixels — All Megapixels Are Not Created Equal — How Big is That Camera's Engine? The first five years or so of the digital camera horserace was dominated by a ... http://www.luminous-landscape.com/essays/counting1.shtml
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Videos found for Megapixels

Cheryl Reviews Kodak s 10 MegaPixel...

Cheryl Reviews Kodak s 10 MegaPixel Camera pocket fashionCheryl s newest favorite pocket camera is Kodak s EasyShare V1003 which shoots at 10 megapixels. She shows how the extra megapixels help enlarge a photo or parts of a phot. She...Flash - Video

In World Of Digital Cameras, What's...

In World Of Digital Cameras, What's The Deal With Megapixels?Digital cameras are usually one of the hottest gifts of the holiday season. But trying to figure out which one to buy can be a real hassle.Windows Media - Video

Moultrie Game Spy I40 Infrared Digi...

Moultrie Game Spy I40 Infrared Digital Game Camera (4.0 MegaPixels)My review of Moultrie Game Spy I40 Infrared Digital Game Camera (4.0 MegaPixels)Flash - Video

Cheryl Reviews Kodak's 10 MegaPixel...

Cheryl Reviews Kodak's 10 MegaPixel Camera Pocket FashionCheryl's newest favorite pocket camera is Kodak's EasyShare V1003 which shoots at 10 megapixels. She shows how the extra megapixels help enlarge a photo or parts of a phot. She...Flash - Video

Nikon COOLPIX S600 10.0 Megapixels ...

Nikon COOLPIX S600 10.0 Megapixels Digital CameraFrom the solid feel and comfortable grip of the world's smallest compact stainless steel body to its large, easy-access control buttons and 2.7-inch high-resolution LCD monitor,...Flash - Video

Videos found for Megapixels

Sony Cybershot DSC-P73 User Review ...

Sony Cybershot DSC-P73 User Review 363A small digital camera packed with a ton of features for a reasonable price. Videopinions are product reviews and demonstrations by the people who use them - in full motion video. Go to Expo TV at ww...flash: 0 MB w:400px - h:300px

HP Photosmart R707 Digital camera U...

HP Photosmart R707 Digital camera User Review 399This video displays my thoughts on the HP R707 camera Videopinions are product reviews and demonstrations by the people who use them - in full motion video. Go to Expo TV at www.expotv.com to find mo...flash: 0 MB w:400px - h:300px

Kodak EasyShare DX6490 camera User ...

Kodak EasyShare DX6490 camera User Review 3275lisak157 reviews the Kodak DX6490 camera, her favorite and the one she does all her reviews with! Videopinions are product reviews and demonstrations by the people who use them - in full motion video....flash: 0 MB w:400px - h:300px

Sony TRV25 Camcorder User Review 38...

Sony TRV25 Camcorder User Review 3809as our first camcorder, we were pretty happy with this. you do begin to feel the weight after holding it up for some time. it does perform quite well though Videopinions are product reviews and demo...flash: 0 MB w:400px - h:300px

Canon Powershot S2 IS User Review 6...

Canon Powershot S2 IS User Review 6816Powerful camera full of features for the true hobbyist. Videopinions are product reviews and demonstrations by the people who use them - in full motion video. Go to Expo TV at www.expotv.com to find ...flash: 0 MB w:400px - h:300px

Answers for Megapixels

Mz_SO_CAL

What is the use of having 10 megapixels in a camera if you are not going to enlarge the picture?

Mz_SO_CALIf you always plan to compose your pictures perfectly, you don't need 10 MP. If you want to allow for cropping, which means enlarging only a portion of your image, the more pixels the better. Imag...
penngirl

How many megapixels do you need to take decent pictures?

penngirlYou can take decent images with a 1 MP camera. The truth is, that it doesn't really matter how many MPs you have. The quality of photos comes from the lens, the sensor, the user, and the build of th...
K800

What are the camerafones that has 5 or more megapixels camera?

K800LG KG920 has 5 MP camera but looks way too ugly. samsung has some in works n will be out with them soon. Nokia n SE will also up the ante as is apparent http://www.gsmarena.com/lg_kg920-1467.php
Starby999

How many megapixels my camera has?

Starby999It has 6 MP and in addition it has one of the larger sensors for a camera in the SLR-like arena. Link to all the specs. http://www.dpreview.com/reviews/compare_post.asp?method=sidebyside&cameras...
xxxxxamolivexxxxx

How many megapixels is the iPhone camera?

xxxxxamolivexxxxx2.0 Mega Pixels..... and 1600 X 1200 resolution and if you want to know more, go to http://www.gsmarena.com/apple_iphone-1827.php

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