Printing, Display & Output — 60 Terms Defined

Print Resolution Printing, Display & Output ppi The density of image pixels mapped onto a printed surface, which together with the file's pixel dimensions determines the print size. Print size = pixels / ppi

Projection Printing, Display & Output lumens Displaying photographs by projecting light through or onto a surface, for audiences rather than individual viewing.

Protective Coating Printing, Display & Output A clear spray, laminate or varnish applied over a print to guard against ultraviolet light, moisture and abrasion.

Quadtone Printing Printing, Display & Output count Monochrome printing using four or more black and grey inks, with colour inks disabled or minimised.

Raster Image Processor Printing, Display & Output Software that converts an image into the precise droplet pattern a printer lays down, replacing the standard driver.

Screen Delivery Sizing Printing, Display & Output px Choosing pixel dimensions and compression for images intended to be viewed on screens rather than printed.

Screen-to-print Match Printing, Display & Output The correspondence between how an image appears on a calibrated display and how it appears as a print.

Soft Proofing Printing, Display & Output Simulating on a calibrated screen how an image will look when printed on a specific paper and printer.

Stochastic Screening Printing, Display & Output µm A halftoning method using dots of fixed size distributed in a randomised pattern rather than a regular grid.

Test Print Printing, Display & Output A small print, often of selected crops, made to evaluate colour, tone and sharpening before committing to full size.

Viewing Booth Printing, Display & Output K, lux An enclosure providing standardised, controlled illumination for judging prints and proofs.

Viewing Distance Printing, Display & Output m The distance from which a print is normally seen, which determines how much resolution and sharpening it actually needs. Typical distance ≈ print diagonal