Difference Between DPI and LPI

DPI vs LPI

Dots per inch (DPI) and Lines per inch (LPI) baffles everyone with regard to their function. Even those techno savvy people seem to have a hard time distinguishing the two. These printing resolutions are quite necessary especially to those who are in lithography.

DPI

DPI is often related to how sharply an image maybe represented in terms of plotting and printing processes. This is the number of increments that the print head can advance in one inch, but these are not necessarily small dots and will overlap at a certain point thereby appearing as a continuous line. To put it simply, the more dots the printer has per inch, the better the resolution it can produce.

LPI

LPI is the standard for printing using the determination of the dot’s size and is connected to the process the printers provide for the output of various images. It is said that it is dependent on the type of the output agent. It utilizes the halftone dots used mainly in commercial offset lithography printing. With LPI, it follows that the finer the screen the more detailed the image will be.

Difference between DPI and LPI

The printer does not have the capacity to print the shade of gray, since it has a binary code which is only limited to the black and white shade. In order to produce the gray hue, the imaging device utilizes round dots of various sizes that when they are placed under high resolution, provides an illusion that the tint is gray. These dots has what we call a center point composed of different sizes, depending on what shade of gray is needed, this is where the LPI comes in.

Both are vital in the evolution of printing, since these are the main components for a good image quality. Basically these two resolutions are autonomous from the function of the other and have different printing objectives.