Dem pattern, Palm, Ntsc – Fluke PM5414V Benutzerhandbuch

Seite 36: Purity patterns

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background image

(GB)

4-6

CHARACTERISTICS PM 5414 V

11. DEM pattern

PAL B,D,G,H,I,N

r

G-Y' = 0

Y = 50 % ^

A

A

±(R-Y)
= 0.28

T(R-Y)

= 0.28

+ (B-Y)
= 0.5

-(B-Y)
= 0.5

A

A

+ (R-Y)
= 0.28

-(R-Y)
= 0.28

±(B-Y)
= 0.5

T(B-Y)

= 0.5

Reference Y = 50 %

A (B-Y) = 0

□ (R-Y) = 0

PALM

^ G-Y

= 0

Y = 54 %

A

A

±(R-Y)
= 0.26

i(R-Y)

= 0.26

+ (B-Y)
= 0.46

-(B-Y)
= 0.46

A

A

+ (R-Y)
= 0.26

-(R-Y)
= 0.26

±(B-Y)
= 0.46

=F(B-Y)

= 0.46

Reference Y = 54 %

A (B-Y) = 0

□ (R-Y) = 0

NTSC

r ^

II

Y = 54 %

-I =0.23 Q = 0

white (Y = 100 %)

3

XI

Y = 54 %

+Q=0.23 l = 0

black (Y = 7.5 %)

j

4

horizontal bars with PAL burst

4 colored squares (PAL coded)

4 uncolored squares

(anti PAL-coded)

1 grey square

4 horizontal bars with PAL burst

4 colored squares (PAL coded)

4 uncolored squares

(anti PAL-coded)

1 grey square

3 horizontal bars with NTSC burst

color bar
amplitudes: 77/-/77/7.5

height: 4/6 field

2 colored squares, 1/6 field

2 uncolored squares; 1/6 field

12. Purity patterns

amplitudes

3 primary colors:

red, green, blue

3 complementary colors:

magenta, yellow, cyan;

white 100 % Y, black

100/0/75/0

77/7.5/77/7.5

625 line systems

525 line systems

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