Aivia Software
Channel Settings
Channel Settings is one (1) of the four (4) display settings sections. This section lets you adjust the appearance of each channel on the currently displayed image. The adjustments applied here only change how the image is shown in the Image Viewer and do not change the underlying data on the image.
Interface
The Channel Settings panel is at the top of the column to the right of the Image Viewer by default. The Channel Settings table header contains controls that apply to the whole image, and each table row contains controls that apply to just the corresponding channel. An example of the Channel Settings table is shown below.
Table header
The table header contains labels for each column as well as global display options for the image. The three (3) buttons in the table header are the following:
Name | Icon | Description |
|---|---|---|
Show/Hide All Channels | | Toggles the visibility of all channels on the image |
Apply Channel Display Color | | Sets the color display for each channel from a list of pre-defined color maps |
Auto-fit LUT | | Toggles auto-fitting of the lookup table (LUT) function to the actual dynamic range of the image and updates the range for each frame |
Toggle Volume Shading | | Applies shading to the displayed volume in 3D View when Composite Volume mode is selected |
Table row
Each table row in the Channel Settings table represents a single channel on the displayed image. The background color of each row corresponds to the specified channel color in the Color column of the table. Each row can be controlled independently to adjust the display settings of each channel. There are five (5) controls:
Name | Icon | Description |
|---|---|---|
Show Expanded LUT | | Expands the LUT display of the selected channel |
Show/Hide Channel | | Allows you to show or hide the selected channel from view |
LUT Adjustment Controls | | Allows you to specify the displayed dynamic range of the selected channel; there are two sliders that can be dragged along the entire table row:
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Color Picker | | Opens a color picker that lets you select a desired display color for the selected channel |
Render Mode Selector | | Lets you specify the rendering mode of the selected channel in 3D View |
Using the Channel Settings panel
The Channel Settings are active whenever you have an image loaded and displayed in Aivia. The software automatically populates the table based on the number of channels that are on the image and the channel color(s).
Apply Channel Display Color
This function sets the display color of each channel to a color that is based on a color map selected by the user. The color maps are predefined such that when applied, each channel's display color is different from its neighboring channel(s).
There are two types of color maps available: Discrete and Gradient.
Discrete color maps assign a color to each channel that is distinctly different from its neighbors' color. This type of color maps helps to differentiate adjacent channels more easily.
Gradient color maps assign a color to each channel such that each color is a gradual change from one end of the color spectrum to the other. This type helps to identify the channel names by color shown in the image viewer.
To apply a color map, click on the icon to display the list of available color maps. Click to select the desired color map, and the channels colors will be updated accordingly.
Additionally, there is an option to reverse the order of the colors assigned to each channel. Click on the icon to display the list of available color maps, the click Reverse Channel Colors. The colors assigned from the first to the last channel will then be applied from the last to the first channel, thus reversing the order of assignments.
Set channel visibility
Channels can be shown and hidden individually with the Show/Hide Channel icons to the left of their names. The Show/Hide Channel icon has two states:
Display State | Icon | Description |
|---|---|---|
Shown | | The selected item is visible; click on the icon to hide the selected item. |
Hidden | | The selected item is not visible; click on the icon to show the selected item. |
Additionally, you can show/hide all channels by clicking on the Show/Hide All Channels icon in the table header.
Change render mode
You can specify the rendering mode for channels in 3D View by clicking on the icon in the View column. Clicking on the icon will bring up a list of render mode options that are available for the selected item. There are three (3) options:
Rendering Mode | Icon | Description |
|---|---|---|
Maximum Projection | | Sets rendering to Maximum Intensity Projection mode |
Composite Volume | | Sets rendering to Composite Volume mode |
Preview Surface | | Sets rendering to Preview Surface mode |
Once a new rendering mode is selected, the displayed image refreshes automatically to reflect the new selection.
Depending on your hardware, the size of the image and the rendering mode chosen, it may take Aivia up to several minutes to fully render the image with the specified settings.
A comparison between the three (3) rendering modes is shown below.
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Maximum Projection | Composite Volume | Preview Surface |
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Render mode options |