Print

dot gain example

The principle of dot gain compensation plate curves, Quality in Print

Dot gain, or tone value increase (TVI), is a normal part of the print reproduction process.

Controlling tones using calibration means that you can manipulate the exact size of the dots

on the printing plates so that tone saturation and gray balance are controlled on the press sheet.


 

From Wikipedia

Dot gain (also known as Tonal Value Increase) is a phenomenon in offset lithography and

some other forms of printing which causes printed material to look darker than intended.

Bruce Lindbloom

Dot gain is the difference between the actual printed dot and the ideal digital dot.

For the equations and other colour calculations.