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! ...
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.
Megapixels
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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.
How Many Pixels?
Until recently the quality of digital cameras was measured by how many pixels they boasted. Now we have cameras that can produce tens of millions and it has ceased to be the only test of quality.
See also Pixels and Pixel Quality.
This article is written by Vincent Bockaert,
author of The 123 of digital imaging Interactive Learning Suite
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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?
A megapixel refers to one million pixels. The amount of detail that the camera can capture is called the resolution, and it is measured in pixels.
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.
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
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.
PIXELS by Patrick Jean & ONEMOREPROD
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Pixels
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 Per Inch (ppi) - The number of pixels captured per inch by a scanner. This is a more accurate rate term than dpi (dots per inch) when applied to scanners because scanners capture pixels.
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.
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.
Pixels
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 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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megapixels
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:
At this point, we recommend purchasing a camera that is capable of capturing images of three million pixels (that's three megapixels) or more.
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.
Megapixels
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.
MEGAPIXELS RESOLUTION
How many megapixels resolution should your digital camera be able to capture? Pixels are the dots that together make up your image.
Hot pixels
Faulty pixels which are always on, causing a white spot in the image, usually slightly larger than one pixel in size.
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)
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.
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Pixels in an image are usually square (i.e. the same width as height), and arranged in a rectangular grid.
Pixels on the image sensor that misread the light.
Noise reduction:
When a slow shutter speed is used (1/30 sec. and lower), the image degrades due to the buildup of electronic signal ("noise").
Pixels Still: 3,264 x 2,448; 3,264 x 2,176; 2,592 x 1,944; 2,048 x 1,536; 1,280 x 960; 640 x 480; Video: 320 x 240; 160 x 120
Picture-quality modes F (Fine), N (Normal), RAW
ISO sensitivity AUTO, 64, 100, 200, 400, 800, 1,600 ...
Pixels per inch (PPI), while related to DPI, refers to the pixels per inch on a computer monitor.
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.
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.
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).
Hot pixels occur because of charge leakage from individual pixels on your DSLR’s image sensor.
ppi: Pixels per Inch.
Pixel: A digital image is made up of small continuous tone spots called pixels. The word pixel is derived from the words Picture Element. In an RGB image (with a of 24) each pixel can be any one of 16.7 million colors/tones.
HiddenPixels
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The CCD pixels gather the color from the light and pass it to the shift register for storage.
1.3 megapixels
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How many pixels do you need? It all depends. This is like asking someone if they need a 35mm camera or a larger format. Different photographers have different needs. I use digital, 35mm, medium format and large format.
How Many Pixels?
You may have noticed that the number of pixels and the maximum resolution don't quite compute. For example, a 2.1-megapixel camera can produce images with a resolution of 1600x1200, or 1,920,000 pixels. But "2.
More megapixels means more clarity and sharpness in your image. Modern compact digital cameras are fast becoming comparable to their DSLR cousins in this aspect. No longer are 15 or 16 megapixels out of the reach of the amateur photographer.
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6. Thieves
Another natural predator of expensive photographic equipment is the thief when you least expect it will swoop in and steal your gear away from you - leaving you feeling frustrated, ...
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.
 See also: Image, Pixel, Digital, Photograph, Camera
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