TV screen test – 3D
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3D TV screen test card for calibration and diagnose – three dimensional abstract illustration. TV test pattern image travesty

"A test card, also known as a test pattern or start-up/closedown test, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast (often at sign-on and sign-off). Used since the earliest TV broadcasts, test cards were originally physical cards at which a television camera was pointed, and such cards are still often used for calibration, alignment, and matching of cameras and camcorders." Wikipedia, The Free Encyclopedia, "Test card", https://en.wikipedia.org/wiki/Test_card
Author: Plrang Art - All Rights Reserved 
What's in this image
abstract
adjust
break
broadcast
card
check
color
contrast
cubes
diagnostic
display
future
geometry
grid
luminance
pause
quality
ratio
receive
reference
rgb
saturation
screen
signal
sphere
spherical
television
test
transmission
tune
tuning
vibrant
video
vision
vivid