Olympus DP2-BSW Kullanıcı Kılavuzu - Sayfa 23

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Camera settings

Sharpness Use the sharpen filter to increase or decrease the sharpness of the image by edge

Contrast Move the

Brightness Use the

1 γ ⁄

with I = intensity value of the destination image, I

image.

The values for Gamma vary between 0.2 and 5. Values smaller than 1 make the

image altogether darker. At the same time, the contrast in bright areas of the image

will be increased. Values greater than 1 make the image altogether brighter. At the

same time, the contrast in dark areas of the image will be increased.

enhancement. You change the strength of the sharpen filter by moving its slide con-

trol.

Values ranging from -30 to 30 are possible, whereas the default value is 0. The image

gains a smoother appearance when you use negative values and a sharper one

when you use positive values. Raising sharpness will accentuate edges, but also

increases image noise. Entering a value of 0 will result in the sharpen filter having no

effect at all.

Contrast

slide to change the contrast values of the image. Values smaller

than 1 lower the image contrast. Values greater than 1 enhance the image contrast.

When changing the image contrast the brightest part of the image always remains

the same.

After changing the image contrast it may be that dark or bright image areas are not

displayed optimally anymore. In this case use the

whole image brighter or darker.

Brightness

slider, if the whole image is too bright or too dark. Values smaller

than 0 lower the image brightness. Values greater than 0 increase the image bright-

ness.

Shading correction

In the

Shading Correction

the shading correction corrects the effect of an inhomogeneous illumination (Illumi-

nation correction). Additionally, the shading correction corrects the different sensitiv-

ity of individual pixels on the CCD chip (Noise correction).

Select the

Dark

option to activate the Noise Correction.

Select the

Flatfield

option to activate both the Illumination Correction and the Noise

Correction.

Select the

Off

option to disable the shading correction.

Click the

Edit...

button to check whether correction images have already been

acquired or not. When correction images are available, you will find them listed here.

In the

Image Type

column, the correction images for the noise correction are identi-

fied by the entry Dark, the correction images for the illumination correction, with the

entry Flatfield.

= the intensity value of the source

group you can correct two different shadings. First of all,

Brightness

slider to make the