DVDO AVLab TPG Betriebsanweisung PDF herunterladen (Seite 33)

DVDO AVLab TPG - 4K Test Pattern Generator

DVDO AVLab TPG 33 A.04

A Typical Calibration Session:

Display calibration is a process that requires some level of expertise. Companies like AVPro Alliance offer

Imaging Science Foundation [ISF] certification classes using CalMAN, and LionAV offers THX calibration

classes using ChromaPure; both run over a few days to train an installer in the art and science of

calibration. While there are some excellent tools that help automate the process, a thorough

understanding of the relative level of importance of each adjustment and some means to objectively

measure the result with a calibrated meter are required to achieve an optimum result. Nevertheless, many

adjustments can also be made by eye by using a specially designed pattern. To this end, AVLab TPG has

both visual patterns for quick adjustments as well as computer controlled patterns for use with software

control.

**Note that this is only an overview of the process – more detail can be found in a great overview by

Tom Huffman here:

**Kal at CurtPalme.com also has an excellent step by step process using the ChromaPure system that

can be found here: Chromapure software can be found on the included USB flash drive.

**What Color Calibration Software to use? While there are a number of choices, there are three that stand

out: CalMAN by Spectracal (trial version on disk), ChromaPure (trial version on disk), and HCFR – a

free/open source package that can be found here.

A typical calibration normally involves the following steps but many other checks and adjustments can

also be performed. This example process is based on the ISF workflow using CalMAN 5.3 software.

1) Before you start:

a. Checking equipment capability and the room: Contrast ratios interframe vs intraframe – Using

the large checkerboard, verify that target contrast ratios can be achieved given the room

conditions. 150:1 is always a good intraframe target.

b. Setting up a PC (Media center or Gaming) – set up component 16-238 super white, RGB or

component, 4:2:0, aspect ratio, and output format,

c. Playstation setup tips – cnet.com.

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DVDO AVLab TPG Betriebsanweisung Seite 33