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2. Device-independent pixel - Wikipedia

   en.wikipedia.org/wiki/Device-independent_pixel

   As dp is a physical unit it has an absolute value which can be measured in traditional units, e.g. for Android devices 1 dp equals 1/160 of inch or 0.15875 mm. While traditional pixels only refer to the display of information, device-independent pixels may also be used to measure user input such as input on a touch screen device.

3. Pixel density - Wikipedia

   en.wikipedia.org/wiki/Pixel_density

   In digital photography, pixel density is the number of pixels divided by the area of the sensor. A typical DSLR , circa 2013, has 1–6.2 MP/cm 2 ; a typical compact has 20–70 MP/cm 2 . For example, Sony Alpha SLT-A58 has 20.1 megapixels on an APS-C sensor having 6.2 MP/cm 2 since a compact camera like Sony Cyber-shot DSC-HX50V has 20.4 ...

4. List of abbreviations in photography - Wikipedia

   en.wikipedia.org/wiki/List_of_abbreviations_in...

   The number of pixels or picture elements contained in one linear inch in a digitally stored image. PS, PSE: Photoshop, Photoshop Elements. Commercial computer applications developed by Adobe for editing digital images. [20] RGB: RGB color space. An additive colour space that uses the primary colours of red, green and blue to create any colour.

5. Comparison gallery of image scaling algorithms - Wikipedia

   en.wikipedia.org/wiki/Comparison_gallery_of...

   One of the simpler ways of increasing the size, replacing every pixel with a number of pixels of the same color. The resulting image is larger than the original, and preserves all the original detail, but has (possibly undesirable) jaggedness. The diagonal lines of the "W", for example, now show the "stairway" shape characteristic of nearest ...

6. Pixel - Wikipedia

   en.wikipedia.org/wiki/Pixel

   This example shows an image with a portion greatly enlarged so that individual pixels, rendered as small squares, can easily be seen. In digital imaging, a pixel (abbreviated px), pel, [1] or picture element [2] is the smallest addressable element in a raster image, or the smallest addressable element in a dot matrix display device.

7. Image resolution - Wikipedia

   en.wikipedia.org/wiki/Image_resolution

   An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could refer to it as 2048 by 1536 or a 3.1-megapixel image. The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 ...