The Adjust display window

This window allows to adjust the contrast of the dataset individually for each color channel. The intensity values for the currently shown slice can be checked in the histogram at the bottom of the window.

A brief demonstration is available in the following video:
https://youtu.be/WhpzGMyslZU

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Contents

Parameters

List of widgets:

Color channel combobox choose color channel for adjustment
Min slider and editbox
define the black point
selection the black point; all intensities below this value will be rendered as black. The right mouse click above the slider sets its value to 1.
*Note!* it is also possible to set this value using the left mouse click on the histogram plot at the bottom of the window

Use the min button to find minimal intensity value for the selected color channel and assign it to black.
Additionally, right mouse click opens a menu allowing to define the black point from the historam of intentities.
Max slider and editbox define the black point
selection the white point; all intensities above this value will be rendered as pure color or white. The right mouse click above the slider sets its value to maximal posible for the current image class.
*Note!* it is also possible to set this value using the right mouse click on the histogram plot at the bottom of the window

Use the max button to find maximal intensity value for the selected color channel and assign it to white.
Additionally, right mouse click opens a menu allowing to define the white point from the historam of intentities.
Gamma allows modification of gamma parameters. Gamma values below 1 enhance high intensity values, and Gamma values above 1 enhance low intensity values.
The right mouse click above the slider sets this value to 1%
links all color channel so that changing of the Min/Max/Gamma sliders and editboxes affects all color channels at the same time
Log checkbox defines type of histogram representation in the histogram plot: linear or logarithmic scale
Auto update switches ON automatic update of the histogram.
When enabled the histogram is updated after each slice change.
Warning! Switching on the automatic update of the histogram may significantly decrease rendering of images
Update button update the histogram for the currently shown slice
Current button recalculate intensities of the selected color channel (the Channel combobox) with parameters specified in the dialog for the currently shown slice. The intensities below the Min value become black and the intensities above the Max value become white.
The contrast adjustment of a single slice is not logged in the log list see the *Log button* description.
All slices button recalculate intensities of the selected color channel (the Channel combobox) with parameters specified in this dialog for all slices. The intensities below the Min<.code> value become black and the intensities above the Max value become white

Histogram at the bottom of the window

The histogram shows the plot with intensity values in the X-axis and number of pixels for each intensity value in the Y-axis. Note! The histogram is calculated from the image shown in the Image View panel - not from the full slice!

The adjustments made with Gamma are not shown in the histogram plot.

It is possible to change Min and Max values for the intensities by manual numerical input, using the slider or with the right and left mouse click within the histogram plot.

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