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Written by: Digital Photography
The word pixel was created from the two words "picture element". From that they abbreviated taking the first few letters from "picture element" and it slowly became pixel.

HotPixels Eliminator
Some of the more expensive cameras lets you to extend your exposure time even for few seconds (Sony 505V up to 8 sec).
That's cool, but when you actually try it, your image will be .... full of stars! ...

Sensor Pixels
Similar to an array of buckets collecting rain water, digital sensors consist of an array of "pixels" collecting photons, the minute energy packets of which light consists.

"Pixels per inch" (PPI) is the more straightforward of the two terms. It describes just that: how many pixels an image contains per inch of distance (horizontally or vertically).

Megapixels Explained
Choosing the number of megapixels a camera takes will determine overall cost and the size of the prints produced from the images. A megapixel is equal to 1 million pixels, the computer elements used to produce a digital image.

CCD pixels
Techniques Glossary CCD pixels
The total number of pixels on a CCD array.

Megapixels: Calculating the True cost of Resolution
Nothing excites camera buyers more than leaps in resolution. Like it or not, the eye-catching and revenue generating headlines are about mega-pixels.

Megapixels - An Explanation of Megapixels and How They Affect Photos
Camera manufacturers are fond of advertising cameras by the number of megapixels they have. But what exactly is a megapixel and how does it affect photos?

PPI (Pixels per inch)
An indication of resolution for digital pictures taken by a camera or scanned in.
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Pixels Per Inch
Normally you don't have to change the number of pixel's in an image to change the size of a printout. That task is handled by the software program you use to print the image.

Hot pixels are individual pixels which look much brighter than they should. They are also called sparkles.

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More pixels, more problems. It's true that high megapixel cameras afford photographers the ability to capture huge amounts of detail and resolution, but they also carry with them some problems that their predecessors might not.

5 megapixels
7 megapixels
If you only enjoy your photos on your computer screen, or uploading to a photo website to share with friends, you really only need a 1 megapixel camera.

82,000 pixels
20,000 pixels
A high MegaPixel count comes in handy when you want to crop pictures, and when you want to make enlargements.

1 to 2 megapixels: My first digital camera was a Canon PowerShot S110 which only had a 2 megapixel sensor. Cameras in this range are pretty decent though - you can expect to print out great 4x6 prints at this resolution.

How many megapixels do you need? First, determine how big you want to print your picture. Next multiply the number of inches by the desired ppi to calculate the total number of pixels needed.

Megabytes, Megapixels, JPEG Compression, and File Size Confusion
Isn't 100K a really small size for a photo for Your Best Shot? We explain JPEG compression, from camera to computer monitor.
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It's Not Just Megapixels
Image quality in a digital camera is affected by much more than how many pixels fit its sensor
By Rob Sheppard ...

Open a file from such a cheap camera in Photoshop and upsample it to 6 megapixels so it will be the same size as one of our supposedly "good" images. What will our upsampled file look like?

When comparing digital cameras and their resolutions, it pays to be aware of the effective number of pixels, as often the total number of CCD pixels is quoted as an advertising ploy.

The size of a digital camera's sensor depicts the number of pixels that can be captured when it records the image. This is represented as "MegaPixel" or Millions of Pixels.

A digital photo is built from a number of pixels (pixel is the short name for picture element). Pixels are small colored squares which together forms a grid pattern resulting in the final picture.

Pixels per centimeter (ppcm), Pixels per inch (PPI) or pixel density is a measurement of the resolution of devices in various contexts: typically computer displays, image scanners, and digital camera image sensors.

A pixel is a contraction if the term PIcture ELement. Digital images are made up of small squares, just like a tile mosaic on your kitchen or bathroom wall.

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The individual picture elements that make up a digital display. The more pixels, the greater the detail and sharpness of the display or the image.

Pixels mean quality for a digital photo frame
The ideal digital photo frame would display your images as clearly as a printed photograph. As this is nearly impossible, we recommend looking for the greatest number of pixels you can buy.

Pixels. The small picture elements that make up a digital photograph.
Port. An electrical connection on the computer into which a cable can be plugged so the computer can communicate with another device such as a printer or modem.

Pixels per inch (PPI)
A measure of how much detail you see in your images.

apps do not remove the need for design. this article reduces design to pretty color and layout or the candy shell of a site or a thing. Web design.UX design.UCD design ... starts at the inception of the solution.

Pixels per inch (ppi). The number of pixels that can be displayed per inch, usually used to refer to pixel resolution from a scanned image or on a monitor.

Thousands of tiny dots make up a digital image. These small dots are known as pixels. Each pixel contains information about the image’s color and light. Pixels record and display information in the form of an image resolution.

-Pixels - abbreviation for picture elements. The tiny squares of light making up the picture are transmitted in digital form and reconstituted as a visual image.

(Pixels Per Inch) A measurement to describe the size of a printed image. The higher the number, the more detailed the print will be.
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Buying by only the megapixel rating will mean you will miss out on the other features of the camera - portability, accessories, a good quality flash, but it is one of the most important considerations.

Megapixels are only one aspect of the equation: sensors play a big part.
Since so many consumers don't understand megapixels, manufacturers often skimp to offer more of them.

Megapixels - A Megapixel means ‘one million pixels’ (see entry in our photograpgy dictionary). Thus a photo with a four Megapixel resolution (4MP) has four million pixels in it.

Megapixels and the largest printable image size: The amount of megapixels a digital camera has determines how large you can print the image. Therefore I've also mentioned below the largest image size each camera prints in pixels.

On most website as well as a shop's shelves, cameras are lined up by their "megapixel" count. Megapixel simply means "million picture elements", or dots that make up the image.

How many megapixels resolution should your digital camera be able to capture? Pixels are the dots that together make up your image.

Mega pixels
You would think that a 6MP camera would produce better images than a 5MP one but that is not always the case.

PPI (pixels per inch) - Defines the quality of an image's resolution. Images on the Web require only a low resolution 72 to 86 ppi. A high quality photo would require a much greater resolution or higher ppi.

PPI (Pixels Per Inch)
The measurement of image resolution expressed in pixel density (or size) relative to inches. PPI can be used to calculate the final image size by dividing the image dimensions in pixels, by the PPI.

Myth: Pixels equate to ink droplets
You may have been told that you have to use a high image resolution (most commonly given as 360 ppi or pixels per inch) in order to get the best inkjet prints.

Mega pixels
One million pixels or more. The more pixels that exist in a image the higher the resolution and therefore the greater the quality of the image. Many new Kodak cameras are equipped with mega pixel sensors.

PPI (Pixels-Per-Inch)
Also referred to as DPI (Dots per Inch), the higher the PPI, the higher the image quality of the final print.
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4. Megapixels
If the kids digital camera has less than one megapixel expect to see some blurriness in the images....and they won't look very good printed out or developed at a photo shop. Remember to watch out for megapixels.

Bad CCD pixels. There are a number of problems that can surface with pixels on the CCD of a DigiCam. Hot pixels are the most common, when the pixel lights up on a long exposure. Personally, I find this to be a non-issue.

24 Megapixels - is it too much?
Some people think 24 megapixels is a lot to cram onto an APS-C sized sensor. One thing for sure, that many megapixels may test the resolving power of some lenses.

logical pixels
Idealized pixels having perfectly defined characteristics and occupying no physical extent. The graphics equivalent of a mathematical point. Contrast with physical pixels.
look-up table ...

Pixels in an image are usually square (i.e. the same width as height), and arranged in a rectangular grid.

PIXELS: A unit of measurement for resolution or size of a digital image. Each pixel represents one DOT in a continuous matrix of dots. This matrix of dots, when viewed on a computer screen, make up the content of your digital image.

The pixels in the histogram are heavily skewed to the far left.
This photo of a queen angel was initially taken with the white balance accidentally set on "fluorescent" (inset).

Megapixels (MP)
One mega-pixel is equal to a million points of light (or pixels), the higher the mega-pixels, the higher the resolution of the digital image. This directly affects the size that an image can be enlarged, for example a 3.

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How many megapixels do you need to get the quality you want? As you can see here, it all depends on print size.

fills adjacent pixels that are similar in color value to the pixels you click.
(ImageReady) lossless compression that uses a run-length compression scheme; supported by the TIFF file format in ImageReady only.

Effective megapixels
The number of pixels that actually appear in the final image.

Balancing those pixels.
A short video showing how to use the levels adjustment to control contrast.

See also: See also: Image, Pixel, Photograph, Photography, Digital

Photography  Pixelization  Plane

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