DVDO AVLab TPG, Руководство пользователя

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DVDO AVLab TPG - 4K Test Pattern Generator
DVDO AVLab TPG 32 A.04
e. Choose the correct meter/combination for the job. A high end calibration begins with
calibrating a spectral meter (ipro, Minolta or other) to a tri-stimulus device (Klein, C6) to get
the most accuracy and also the speed of the tri-stimulus.
f. Calman setup – under settings grayscale points – if using a tri-stimulus start with 10 point 10-
100, if i1pro start at 20% as it does not measure dark quickly. Gamma setup of 2.35 is
optimal target
g. Position the meter properly – dark room, proper distance and view
h. Pay attention to redundant controls – processors, PCs and displays and DVD players all have
controls. – Start with TV. Work from the light – calibrate the TV using generator right into TV,
then put generator into AVR and recheck, then back to source.
3) Calibration (This below is based on the ISF workflow in CalMAN but the general flow is applicable in
any software package)
a. Pre-Calibration – First step is always to take a baseline, both for comparison/baseline, and as
a way to show the customer the before/after as part of the calibration report. This screen is
relatively automatic and only requires a single button press with no TV adjustments.
b. Mode settings – Check each TV mode (Cinema, Theater, Movie, Custom – avoid names like
vivid or dynamic) in this screen looking for a mode that can be adjusted and is closest to
proper CCT (color temperature) and gamma.
c. White point and Color space: Run the series and adjust the TV “Color temp” for the one that
lands the white closest to the center white target. Also adjust the color space on the TV for the
one that lands the primary colors closest to the targets – preferably outside the targets as
opposed to inside.
d. Turn off all automatic features – auto iris, auto brightness, black expansion, auto flesh tone
etc.
e. Adjust luminance – Run the series and adjust the TV backlight to the correct light output for
the environment, normally 40 fL for dark rooms and 60fL or more for bright rooms.
i. Note that backlight setting should not affect brightness and contrast settings, but
sometimes it does, so you should check this before and after brightness and contrast
ii. On an LCD, backlight or panel brightness should be an independent setting. On a
projector, use the iris setting (high lamp or low lamp also if available). Be sure to turn