Zeiss Axioplan 2 imaging and Axiophot 2 Podręcznik Użytkownika Pobierz pdf (Strona 21)

Figure 20. White balance settings

10.6 Image resolution

Click Camera and then AxioCamHR in the Work area menu. Choose FRAME tab. There is a list of

available camera resolutions for acquisition. Note that there are four options available for color

images: BIN, STANDARD, SCANNED and HIGH SPEED. STANDARD COLOR is faster to take

but SCANNED COLOR offers softer image quality, by removing noise. The HIGH SPEED modes

produce more noise, but they also retain any sharp edges the objects may have. When using BIN

resolutions, the pixel values are combined to create higher intensity values. For example a 2x2

binning will sum four neighboring pixels in to one. The resolution will halve, but the intensities are

four times higher.

The resolutions greater than 1300x1030 are produced by microscanning, where the sensor chip is

moved slightly between images and the resulting image is interpolated from multiple different

images. Both the image resolution and acquisition time increase.

With FRAME options you can also select only a part of the image to be acquired. The selection is

done with the configuration under resolution settings.

10.7 Display properties

Axiocam-camera detects 16384 intensity levels of each color channel. However, computer displays

typically can display only 128 to 256 levels. The way how 16384 levels are mapped to the display

can be adjusted. Click the image with right mouse button and choose PROPERTIES (or press

ALT+ENTER). Then choose DISPLAY tab. Colored curves show the distribution of signal on

different color channels of an RGB image. The black curve describes how intensity levels are

shown on display. The curve can be modified by sliders or by mouse. There are buttons for

predefined adjustments:

BestFit shows the whole range excluding specified percentage of actual minimum and actual

maximum values

Min/Max shows the whole range from minimum intensity to maximum

Linear shows linearly the whole dynamic range of the camera

With SAVE and RESTORE –buttons it is possible to apply the same settings to other images.

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