LUT

Introduction

The application range of LUT is relatively wide, for example: LUT (Look-Up Table) can be applied to a mapping table of pixel gray value, it will actually sample the pixel gray value after a certain transformation such as threshold, inversion, two Value, contrast adjustment, linear transformation, etc., have become another corresponding gray value, which can play a role in highlighting the useful information of the image and enhancing the light contrast of the image. Many PC series cards have 8/10/12/16 or even 32-bit LUT. The specific conversion in the LUT is defined by the software. The most important significance of LUT here is that it is compatible with the high-end display functions of ordinary monitors, so that those wide color gamuts (generally more than srgb) that cannot be displayed by ordinary monitors can be roughly simulated on ordinary monitors. However, the effect simulated by lut can only be used as a reference, as a rough look and feel when retouching. The best and most complete presentation is still highly consistent with the indicators of the display, graphics card and material itself, so-called "hard decoding".

LUT: Local User Terminal (local communication terminal)

Since desktop publishing came to the computer, the monitor has become one of the important devices in the prepress process. The existence of the monitor can also be found in the processes of scanning, digital photography, photo modification, and typesetting. However, many peers often ignore a part of the display, but if there is an image, they don't care whether the color of the screen is correct. Know if a color accurate (or more accurate) display can be used as SoftProofing (with additional printed ICCProfile) to help employees improve the color quality of the product, and also save costs for the company. Fortunately, color management has become popular in recent years, and monitor calibration has begun to be taken seriously.