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Hairline Register: Printing registration that lies within the range of plus or minus one half row of dots. It is the thinnest of the standard printers' rules.
Halation: In photography, a blurred effect, resembling a halo, usually occurring in highlight areas or around bright objects.
Halftone: Graduated image composed of varying sized dots or lines with equidistant centers.
Halftone Paper: A high-finish paper that is ideal for halftone printing.
Halftone Screen: A sheet of film containing ruled right-angled lines, used to translate the full tone of a photo to the halftone dot image required for printing.
Hard Copy: The permanent visual record of the output of a computer or printer. Also, the material sent to a typesetter in typed form, for conversion into typeset material.
Hard Dot: The effect in a photograph where a dot has such a small degree of halation that the dot shows quite sharp.
Hard Proof: A proof on paper or other substrate as distinguished from a soft proof which is an image on a VDT screen.
Hardware: Computer and peripherals as distinguished from software which is a program for operating hardware.
Head Margin: That space which lies between the top of the printed copy and the trimmed edge.
Hickies: Imperfections in presswork due to dirt on press, trapping errors, etc.
High Bulk Paper: Paper stock that is comparatively thick in relation to its basis weight.
High Contrast: In photography, a reproduction with high gamma in which the difference in darkness (density) between neighboring areas is greater than in the original.
High Key Halftone: A halftone that is made utilizing only the highlight tones down through the middle tones.
Highlight Dot: The highest density of a halftone image.
Highlights: The lightest tones of a photo, printed halftone or illustration. In the finished halftone, these highlights are represented by the finest dots.
Hollow: That space on the spine of a case bound book between the block of the book and the case binding.
Hot melt: An adhesive used in the binding process which requires heat for application.
HSV: Acronym for hue, saturation and value (or brilliance or luminance) - a color space used in some graphic programs.
Hue: In color, the main attribute of a color which distinguishes it from other colors. |
