Using SmartScope Duo
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Parade Display
RGB and YUV Parade displays are perfect for color correction, checking for illegal colors and checking levels.
When color correcting, select RGB Parade from the Display drop down menu. RGB Parade view displays the
full height of the individual red, green and blue color channels. Monitoring the levels of each color channel
makes color correction straightforward and it is also easy to view color balance in the blacks, mids and
whites of the video signal. RGB Parade display enables you to identify details common to the red, green and
blue channels, making it simple to color balance and remove unwanted color tints.
It’s important when color correcting to make sure the video levels are full but not clipped. If you want
to increase the video level, make sure it doesn’t go above upper RGB limit or you will encounter illegal
levels. Some equipment won’t let you generate illegal 100% RGB levels, however other equipment will.
SmartScope Duo lets you see illegal levels whenever they occur.
Illegal video can also happen in the black and white levels. In some color correction systems, black levels can
be lowered to below the black point of 0%. If you observe illegal black levels, just add some “lift” or gain
to eliminate them but check the 100% graticule level to make sure the whole video signal has not lifted and
generated illegal colors in the whites.
To check YUV levels, select YUV Parade from the Display drop down menu. This view is useful because the
luma (brightness) values are separated from the chroma (color) values, which is the format of video signals
for television broadcast. The left waveform shows the luma information and the second and third waveforms
show the chroma information. YUV Parade view is useful for calibrating a video signal's chroma values to
a color bar test pattern, so that colors are represented accurately and the signal being broadcast will be
displayable by television sets.
Color correcting is a constant adjustment process to attain the best looking images without generating
illegal levels!
RGB Parade view.
YUV Parade view.
Select between RGB Parade and YUV Parade from the Display
drop down menu.
Color Correction Terminology
Blacks – black levels in the video signal
Mids – mid-gray levels in the video signal
Whites – white levels in the video signal
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