Image Acquisition
Axiocam 105 color Instal Reference Guide
39
You can now select the area to be displayed by dragging the black
rectangles along the characteristic curve or carry out automatic
optimization by clicking on the corresponding buttons.
A histogram of the gray and color values will be displayed which makes the
gray and color distribution visible.
The
Best Fit
,
Min/Max
and
Linear
buttons can be used to quickly adjust
the histogram display. You can influence the display by clicking on the
Log
or
Skip
buttons.
Best Fit
calculates in the cur
rent histogram the values which exclude 1‰
of the pixels contained in the image. The gray/color range calculated in this
way is displayed on the screen.
(You can adjust the value of 1‰ to suit
your requirements).
Min/Max
displays on the screen the smallest and largest gray or color
value present in the image.
Linear
displays on the screen the total possible value range.
Log
displays the histogram in a logarithmic scaling, allowing you to
effectively evaluate histograms of images with high dynamics.
Skip:
By using the
Skip
function the maximum values at the upper and
lower end of the histogram are omitted during the scaling of the display.
The
,
and
sliders can be used to change the brightness,
contrast and gamma of the display. This can also be achieved by dragging
the individual "handles" of the characteristic curve in the histogram. You
can adjust the brightness and contrast by changing the left or right-hand
end points of the characteristic curve individually or by shifting the entire
line using the center "handle". The gamma value can be changed by
shifting both "handles".
Click the
Save
button to store the current settings. You can use these
settings when displaying another image by clicking the
Restore
button.
This enables you to compare different images.
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