TWAIN is a standard protocol for connecting a scanner to computers and image-editing applications so that you can start a scan within the program.
Tag Archive for 'Scanners'
’Reads’ prints, negatives or slides to produce a digital image. This image is effectively the same as a photo taken with a digital camera (though there are subtle differences in tone, colour and grain). ‘Flatbed’ scanners are used for prints, [...]
Number of pixels on a sensor or pixels per inch in prints. A term which can mean different things in different contexts. In a digital camera, it’s the number of pixels (or ‘megapixels’) in the sensor. When you’re editing an [...]
A combined scanner and printer. Can copy documents without your computer having to be switched on. Generally the scanning and printing quality is very good, but slightly behind that of the best and latest photo-quality scanners and printers from the [...]
Scanners turn prints and documents into digital images. They work a bit like a photocopier – you place the item to be scanned face-down on the glass plate. The item is ‘scanned’ into a digital file by a moving head. [...]
Dots per inch, a measure of resolution in prints and scans. How many pixels (or ‘dots’ – the two are now commonly regarded as the same thing) are printed per inch. It’s also used by printer makers, though a printer’s [...]
Combined printer and scanner. As well as scanning and printing, these devices can also work as a kind of photocopier, copying pages you place under the scanner with a single press of a button, and without the need for the [...]