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In printing, DPI (dots per inch) refers to the output resolution of a printer or imagesetter, and PPI (pixels per inch) refers to the input resolution of a photograph or image. DPI refers to the physical dot density of an image when it is reproduced as a real physical entity, for example printed onto paper. [ 4 ]
The ideal pixel density (PPI) depends on the output format, output device, the intended use and artistic choice. For inkjet printers measured in DPI it is generally good practice to use half or less than the DPI to determine the PPI. For example, an image intended for a printer capable of 600 dpi could be created at 300 ppi.
Higher-quality paper, such as that used in commercial magazines, has less dot gain, and can range up to 300 LPI with quality glossy (coated) paper. In order to effectively utilize the entire range of available LPI in a halftone system, an image selected for printing generally must have 1.5 to 2 times as many samples per inch (SPI). For instance ...
The resolution of 960H depends on whether the equipment is PAL or NTSC based: 960H represents 960 x 576 (PAL) or 960 x 480 (NTSC) pixels. [29] 960H represents an increase in pixels of some 30% over standard D1 resolution, which is 720 x 576 pixels (PAL), or 720 x 480 pixels (NTSC). The increased resolution over D1 comes as a result of a longer ...
[1] [2] In the case of an RGB color display, the derived unit of pixel pitch is a measure of the size of a triad plus the distance between triads. Dot pitch may be measured in linear units (with smaller numbers meaning higher resolution), usually millimeters (mm), or as a rate, for example, dots per inch (with a larger number meaning higher ...
Calculate the scaled pixel size as 1 ⁄ 96 in × (56/28) = 1 ⁄ 48 inch (0.53 mm). Calculate the DPI of the TV as 2160 / (30 in / √ 9^2 + 16^2 × 16) ≈ 82.61 dpi. Calculate the real-pixel count per logical-pixel as 1 ⁄ 48 in × 82.61 dpi ≈ 1.721 pixels. A browser will then choose to use the 1.721× pixel size, or round to a 2× ratio.
Pixel composition: RGB: Orientation: Normal: Number of components: 3: Horizontal resolution: 300 dpi: Vertical resolution: 300 dpi: Data arrangement: chunky format: Software used: Adobe Photoshop CC 2018 (Windows) File change date and time: 10:52, 14 April 2016: Color space: sRGB: Date and time of digitizing: 10:51, 14 April 2016: Date metadata ...
The article states "There is no concept of dpi on the video screen," which is, strictly speaking, true - DPI in the strictest sense is a metric for printer ink/toner dot size, and nothing more - but the remainder of the article treats DPI as synonymous with pixels per inch. The author states "Dpi means 'pixels per inch'", and then goes on to ...