The physical size of a pixel is going to depend on the resolution of the device displaying it. Resolution is typically measured in Dots per Inch (DPI). The general formula to convert from pixels to inches is: Pixels / DPI = Size in Inches. For example, at 75 DPI (typical CRT display) 300px would be 4 inches; while at 150DPI (typical cell phone display) 300px would be 2 inches.
Using the example in the comment, the Archos is a 7 inches screen, while the Nexus One has a 3.7 inches screen. At the same number of pixels, the density of pixels is double on the Nexus One. Remember, dpi means dots per inch. That means that the same image would be rendered twice as big in the Archos than in the Nexus One.
786432 pixels
This looks like the dimension of a high definition computer screen - 1366 pixels wide and 768 pixels high. A pixels is defined as a picture element.
320 x 480 pixels typically would mean that the display of the technological device, (probably a television, computer monitor, or other visual device. etc.) would have 320 pixels on the shortest side of the screen and 480 pixels on the adjacent side. Thus the screen would have 153600 total pixels in the screen, but by writing the dimensions, the manufacturer can keep better track of the brands and not be faced with two different dimensions equalling the same number of total pixels.
.833 inches = 250 pixels
despite having the bigger screen, the resolution is the same. that means BIGGER pixels.
Mega pixels to you a picture tells how big it is. digital photos of small points in the name of pixels and each of these pixels can immediately different color and Light.
53 is a width and 35 is a height of an photo usually numbers represents pixels or inches what is visible after numbers, px stands for pixels and in for inches.
what is a dingbat pixels
The 51 inches is a measurement of the screen diagonally. So, the entire screen--height and width--with be somewhat smaller than that. (edit) i think its 50.7019 inches actually because of the unused pixels at the edge
12 points = 1 pica 1 point = .013837 inches 72 points (6 picas) = .996264 inches (not 1 inch) 16 pixels = 1 picas 1 pixel = .75 points So a 12 point font equivalent is 16 pixels 1 pixel = .010416667 inches, therefore 96 pixels = 1 inch
You can scale an image to make it larger or smaller, but you can't create pixels out of nothing; if you scale it to have fewer pixels, then you're losing detail, and if you scale it to have more pixels, then you have to guess at the value of the new pixels by averaging nearby pixels. Both of these tend to make the picture look more blurry.
If the image is 800 pixels by 600 pixels at 240 pixels per inch, then the image size is (800 / 240) by (600 / 240) or 31/3 by 21/2 inches.
The size of the image is 2.67 inches x 2.83 inches (width x height) when printed at 240 pixels per inch.
It is measured in points.
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