Sim2 HT 280E Installationshandbuch PDF herunterladen (Seite 19)

GAMMA CORRECTION

Determines the system’s response to the grey scale, empha-

sising or attenuating the different grades of brightness (blacks,

dark, medium, light grey, whites) in the projected image.

The projector has a range of gamma functions which enable

you to display any image to the best effect for the type of

video source, the ambient lighting and your subjective pre-

ferences.

There are 4 sets of gamma curves: Standard (ST), Enhanced

ST1 For general use

ST2

ST3

ST4

ST5

EN1 Suited to displaying images from videoca-

meras, digital cameras or TV studios in high

ambient light.

EN2 Suited to displaying images from videoca-

meras, digital cameras or TV studios in low

ambient light.

EN3 Suited to displaying cinematographic material

in high ambient.

EN4 Suited to displaying cinematographic material

in moderate ambient.

EN5 Suited to displaying cinematographic material

in controlled ambient light.

G1 Suited to displaying graphic images (e.g. Win-

dows desktop) in moderate ambient light.

G2 Suited to displaying graphic images in mode-

rate controlled light.

Table 5 - Gamma correction settings

Gamma functions

Standard

Gamma functions

Enhanced SIM2

Gamma

functions

Graphics

NATIVE (the machine’s native white balance);

D75 - D65 - D50 - C standard CIE illuminants;

If the default white balance settings are not sufficient, you can

adjust the white balance manually.

Colour temperature can be adjusted by positioning the white

point within the CIE chromaticity diagram. The system permits

you to place the white point inside a grid positioned in the neu-

tral colour zone. Moving along the“horizontal”lines changes the

related colour temperature, with low temperatures on the right

(thus increasing the red content) and high temperatures on the

left of the graph (thus increasing the blue content).

Points along the yellow horizontal line represent the colours

on the black body curve. The colour temperature along

the“vertical”lines is constant but differs to a lesser or higher de-

gree from the black body curve. This means that by selecting

the points on the higher part of the graph you will increase the

blue component. On the contrary, by selecting points in the

lower part of the graph, the purple component increases.

BEST COLOR

The projector uses the BrilliantColor(TM) algorithm to improve the

colour rendering of images. By enabling this function, the quality

of the image is optimised to the detriment of a moderate loss of

light. With this function disabled, the BrilliantColor(TM) algorithm

makes use of the maximum projector light.

Fig. 23

Fig. 24

Native

HDTV

EBU

SMPTEC-C

AUTO

User 1

User 2

Standard

High

T= 7500 K

White: x = 0,296

y = 0,325

Red: x = 0,653

y = 0,293

Green: x = 0,323

y = 0,653

Blue: x = 0,113

y = 0,033

= 0.009

Medium

Low

Native

D70

D65

D55

User

Image

R G B

White

Color Information

Native

HDTV

EBU

SMPTEC-C

AUTO

User 1

User 2

Standard

High

x = 0,113

y = 0,033

T = 5500K

Medium

Low

Native

D75

D65

D50

User

= 0.009

Image

R G B

White

Color Information

= 0.009

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