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Picture Transfer Protocol ( PTP) is a protocol originally developed by the Photographic and Imaging Manufacturers Association (PIMA) (later known as the International Imaging Industry Association) to allow the transfer of images from digital cameras to computers and other peripheral devices without the need for additional device drivers.
USB video device class. The USB video device class (also USB video class or UVC) is a USB device class that describes devices capable of streaming video like webcams, digital camcorders, transcoders, analog video converters and still-image cameras .
Dots per inch. A close-up of the dots produced by an inkjet printer at draft quality. Actual size is approximately 1⁄4 by 1⁄4 inch (6 by 6 mm). Individual coloured droplets of ink are visible; this sample is about 150 DPI. Dots per inch ( DPI, or dpi [1]) is a measure of spatial printing, video or image scanner dot density, in particular ...
The difference is that whilst D1 has a 4:3 aspect ratio 960H has a 16:9 widescreen aspect ratio. The extra pixels are used to form the increased area to the sides of the D1 image. The pixel density of 960H is identical to standard D1 resolution so it does not give any improvement in image quality, merely a wider aspect ratio.
Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved.
Printer Command Language, more commonly referred to as PCL, is a page description language (PDL) developed by Hewlett-Packard as a printer protocol and has become a de facto industry standard. Originally developed for early inkjet printers in 1984, PCL has been released in varying levels for thermal, matrix, and page printers.
Dimensions. (H × W × D) 4.8 × 16.2 × 11.8 in. The ImageWriter is a product line of dot matrix printers formerly manufactured by Apple Computer, Inc., and designed then to be compatible with their entire line of computers. There were three different models introduced over time, which were popular mostly among Apple II and Macintosh owners.
DPI against PPI[edit] DPI (Dots Per Inch) is a unit of measure that only exist in a physical world, a dot on something physical; paper, plastic, metal etc. It can NEVER exist in a digital world. PPI (Pixel Per Inch) is a unit of measure that only exist in a digital world. It can never exist in a physical world world.