Christie Christie HD User Manual download pdf (Page 79)

Section 3: Operation

M Series User Manual 3-29

020-100009-08 Rev. 1 (05-2013)

• Gamma: Select the base gamma table for a given source. Select

from one of the standard tables, a custom gamma function, or

select an arbitrary gamma table that has been downloaded to the

projector.

NOTE: A separate PC utility is needed to do this.

The 2.22 curve is a power curve typically used to encode

graphics and video sources, see Figure 3-9 Gamma Curve.

The 'standard' curve (auto setup default) is a modified 2.22

curve with a small linear section in the black that enhances the

detail in darker areas of the projected content. Typically

standard or 2.22 is used for all sources. Alternatively, if neither

default is ideal, apply a simple gamma curve by defining a custom power function and slope. Select Gamma

Function from the drop down list to enable the Gamma Function and Gamma Slope controls. For more

complex non-standard gamma curves, a user-defined curve created externally and downloaded to the

projector can be used (requires separate PC-based Arbitrary Gamma software application to create the table

and the Web UI to download it).

NOTE: If any of these special user curves have been installed, their names will appear in the Gamma Table

pull-down list.

• Gamma Function: Defines the base gamma power curve used when the base gamma table value is set to

Gamma Function. This value, combined with gamma slope setting determines the base gamma table to be

used as the custom base table. The curve is generally a power curve with a small linear segment at the

bottom defined by the slope.

• Gamma Slope: This control defines a slope to be used for the base custom gamma table for a small section

at the bottom of the curve. This slope can be used to bring in or out the low level blacks in the image. This

slope combined with the gamma function, define the custom gamma table.

3.6.9 Detail Settings

Adjusts the sharpness of the image. Setting detail above the halfway point can introduce ‘noise’ in the image.

Lower settings can improve a noisy signal.

• Detail: Adjust the sharpness of the image. Setting detail above the halfway-point can introduce noise in the

image. Lower settings can improve a noisy signal. This command does not take effect unless the minimum

change required in the Detail Threshold control is reached.

• Texture Enhancement: Applies texture detail enhancement based on adaptive horizontal, vertical, and

diagonal large edge and small edge enhancement processes.

• Detail Threshold: Selects a filter sensitivity to noise. A higher value may improve noisy sources especially

for higher settings of detail.

• Detail Overshoot: Minimizes ringing on the enhanced edges detail and texture effects.

• Split Screen:

Allows a snap shot of the main image to be presented on the right side of the screen to

allow evaluation of advanced image processing features. All resizing controls are honoured on both

images; however, image processing controls only happen on the left side image. Changing inputs,

channels or test patterns will disable this control.

NOTE: PIP and Tiling operation must be disabled prior to enabling this control.

FIGURE 3-9 GAMMA CURVE

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 165 166

Comments to this Manuals

No comments

Christie Christie HD User Manual Page 79

Comments to this Manuals

Related products and manuals for Data projectors Christie Christie HD