Acquisition Settings - Camera - Adjustment

Use this dialog box to manually change settings on the camera that affect the image quality.

Note: Some of the settings are camera specific. For this reason, your camera's functionality can differ from what is described here.

Changing the image contrast in the live-image

Before you change the settings, you should switch to the live-image, so that you can immediately see how it changes. To do this, use the Acquire > Live command.

bb_camera_settings Opening the dialog box

You can open this dialog box, for example via the camera control. In the Camera Control tool window's toolbar, click the Acquisition Settings button. Select the Camera > Adjustment entry in the tree view.

Description of the function groups

Enhancements

Correction

See also

Overview - Camera Settings

Enhancements

To change one of the parameters that are offered, move the corresponding slide control.

Contrast

Move the Contrast slide control 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 Brightness slide control to make the whole image brighter or darker.

Brightness

Use the Brightness slide control, 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 brightness.

Gain

The intensity value will be multiplied by the value that is entered in the Gain field. The image will then become altogether brighter.

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Correction

Using shading correction, your software can remove image structures that originate in the imaging system and don't belong to the actual image information. You will find detailed information on the shading correction here.

Switching the shading correction on and off

Select the Off entry in the list to switch off the shading correction.

Note: Shading correction is a necessary procedure in order to ensure that you can acquire high quality images with your camera. For this reason, intentionally only turn shading correction off temporarily.  

After restarting your software, the flatfield correction is turned on by default.

Select the Flatfield entry in the list to activate the flatfield correction. With the flatfield correction, you will automatically also activate the dark current correction.

It is also possible to switch on the dark current correction only. To do so, select the Dark current entry.

Editing shading images

Click the Edit... button to open the Edit Shading Images dialog box. Here you can see which correction images already exist. A description of this dialog box can be found here.

Starting the calibration process

Click the Calibrate... button to acquire images for the shading correction. A software wizard will lead you through the individual steps. You can find a description of the calibration process here.

Averaging the shading images

In the Number of correction images list, select the number of images to be averaged in a shading correction image. You can select between 4, 8 and 16 snapshots. Select a large number of correction images so that the image quality of the live-image and the snapshots is as high as possible.

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