Olympus SC30 User Manual page 18

3 megapixel cmos color camera for light microscopy
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Acquiring and saving images
Red, Green, Blue The Red,
Gamma Use the
What is gamma? The numerical value of gamma influences how the illumination intensity on the
Saturation Use the
Brightness Use the
Contrast Use the
Default Click the
Sharpen
Filter On/Off
Sharpen
Filter
Settings
Green
and
Blue
value is the factor with which the signals of the corresponding color channel are
multiplied.
Gamma
slide control to result in a nonlinear contrast enhancement.
CCD chip's pixels is converted into the color value of the respective pixels in the
image buffer. Please note that this also applies for the other slide controls. If
gamma equals 1, the conversion from illumination intensity into gray value i.e.,
color value is linear. A nonlinear contrast enhancement is the result if gamma is
not equal to 1. If gamma is less than 1, the light gray values are spread more
than the dark ones. This results in an improvement of contrast in the image's light
areas. The image, in general, will become darker as a whole. If gamma is more
than 1, the dark gray values are spread more than the light ones. This results in
an improvement of contrast in the image's dark areas. The image, in general, will
become lighter as a whole.
Saturation
slide control as an alternative to the slide controls of the indi-
vidual color channels. The
reproduction from black and white to a maximum color saturation.
Brightness
slide control to change the image's intensity. Values smaller
than 1 lower the image's intensity. Values greater than 1 increase the image's
intensity.
Contrast
slide control to change the image's contrast. Values smaller
than 1 lower the image's contrast. Values greater than 1 increase the image's
contrast.
Default
button to set all of the slide controls to a predefined default
value.
Auto Contrast
Click the
Auto Contrast
enhancement. Now the image will always be shown with enhanced contrast
onscreen no matter what the actual exposure conditions are, provided there is
no over exposure. For this purpose, the system automatically calculates two
sensible limits for displaying the intensity from the intensity distribution in the
image. Intensity values below the minimal value and above the maximum values
will be cut off. The intensity values in between will be spread out on the entire
dynamic range of the camera.
Sharpen filter
Use the sharpen filter to increase the sharpness using edge enhancement
already with the live acquisition.
Click the
Sharpen Filter On/Off
The manner in which the acquired image is affected by the sharpen filter
depends on the sharpen filter parameter. You can adjust this parameter by using
the
Sharpen Filter Settings
Click on the
Sharpen Filter Settings
set the sharpen filter parameter:
slide controls can be moved from 0,00 to 10,0. The set
Saturation
slide control enables you to alter the color
button, to activate or deactivate the automatic contrast
button to activate/deactivate the sharpen filter.
dialog box.
button to open a dialog box where you can

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