Color Adjustment; Histogram - Zeiss Axiocam MR Installation Reference

Image Acquisition with AxioCam MR
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Clicking on the buttons
of the individual color channels manually. Using this method a white balance
you have generated can be subsequently changed. Each click on the arrows
shifts the weighting of the colors in the direction indicated. These changes
can be observed immediately in the live image and in the histogram display.
NOTE:
Further information on setting optimum color reproduction in AxioVision
can be found in Chapter 2.6 "Practical Notes on Operation in AxioVision"
- "Notes on optimum color reproduction in AxioVision".
A setting found using this method can be saved as a setting with a name of
your choice and subsequently reloaded. Activate the corresponding
parameters (WhitebalanceWhiteRed, WhiteBalanceWhiteGreen,
WhiteBalanceWhiteBlue) in the menu Tools - Settings Editor.
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A histogram indicates the intensity distribution of the image signal in the live
image and the acquired image. It provides a clear representation of the
brightness distribution in the current image. The horizontal axis corresponds
to the scale of possible intensity values from dark to light and the vertical axis
shows the number of pixels calculated from the current image which possess
this intensity value on the x axis.
With the color camera the value distribution is displayed separately for each
color channel in three lines (red, green and blue).
If an image is overexposed, at least one curve on the histogram is cut off at
the right-hand edge of the display area, where it forms a maximum. Reduce
the exposure time or insert gray density filters into the microscope's beam
path to reduce the amount of light. It is also possible to reduce the lamp
voltage of the microscope illumination. However, this changes the basic color
of the illumination (color temperature) and requires a new white balance.
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and allows you to change the weighting
B 48-0021 e 10.2003