P1: Tonska vrednost rasterskog polja Flashcards

1
Q

Sta se mora zadovoljiti pri reprodukciji visetonskih slika?

A

Tonske vrednosti originala moraju biti pravilno reprodukovane u stampi

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2
Q

Da li je u ofsetnoj i visokoj stampi moguce menjati kolicinu sloja boje da bi dobili razlicite tonske vrednosti?

A

Ne

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3
Q

Rastriranje nekad:

A

Tekstilna mrezica i stakleni raster - staklo sa ugraviranim rasterskim tackama

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4
Q

Raster danas:

A

Elektronski generisan s razlicitim rasterskim tackama

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5
Q

Kako mogu biti rastrirani visetonski originali?

A

Rasterima s distance i kontaktnim

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6
Q

Teorije kojima je opisano formiranje rasterske strukture na filmu:

A

Camera obscura, difrakcija, polusenka

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7
Q

Kako se kod kontaktnog kopiranja formiraju zeljene rasterske tacke?

A

Rastrirani film postavlja se direktno na original u uredjaju reprodukcije uz pravilnu kolicinu osvetljenja

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8
Q

Tonska vrednost TV je:

A

Procenat zauzetosti povrsine rasterskom tackom

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9
Q

Rasterske tacke mogu se iskazati kao:

A
  1. procenat pokrivenosti povrsine 2. integralna gustina zacrnjenja
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10
Q

20% TV:

A

Velicina rasterske tacke takva da povrsina rasterske tacke obuhvata 20% posmatrane povrsine

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11
Q

Integralna gustina zacrnjenja definise se kao

A

Di = log (S/ S-Sa)

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12
Q

Denzitometrom na transparentnim rasterskim filmovima meri se

A

Integralna opticka gustina Di

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13
Q

Cime se meri integralna gustina zacrnjenja?

A

Transmisionim denzitometrom otvora 2.5-3mm anuliranim na transparentnom filmu

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14
Q

Murray Davies formula radi šta?

A

Pretvara izmerenu integralnu gustinu zacrnjenja u tonsku vrednost

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15
Q

Merenjem TV potvrđuje se

A

da li je film dobro osvetljen i razvijen u rasterskim partijama

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16
Q

Sta se meri transparentnim denzitometrom?

A

Integralno zacrnjenje