The Channels window is used for displaying, managing, loading, and saving the user-defined lists of spectral channels lists. The window header contains the information on the number and width of spectral channels in the form of “Channel list - [204:397-1004::3.0]” meaning that the dataset (the hypercube) consists of 204 spectral channels in the spectral range 397 nm – 1004 nm, the channels are 3 nm wide. If the channel width varies, an average channel width is presented calculated as a difference of spectral range borders divided by the total number of spectral channels.
This window contains the list of spectral channels, for each spectral channel it displays the number of the channel and its corresponding wavelength in nm. The channels in the visible range these channels are color coded, the channels outside the visible range are not. You can select channels for further processing by checking the checkboxes of the desired channels.
At the bottom of the window, a slider for interactive browsing of spectral channels is located. By dragging this slider, you change the current spectral channel; the change of the current spectral channel is also reflected in the image in the main window of the program.
Shortcut menu items for this window:
- Show all channels shows all channels, including previously hidden ones.
- Select all channels checks the selection checkboxes for all channels.
- Deselect all channels deselects all spectral channels.
- Load and show a channel list… loads and displays a channel list from a *.splst file searched by default in the current folder.
- Save selected channel list… saves the selected channel list to a *.splst file located by default in the current folder.
- Show selected channels only displays the list containing only the selected (checked) channels.
- Display each 2nd channel displays each second channel e.g. channels 1,3,5,…
- Display each 5th channel displays each fifth channel e.g. channels 1,6,11…
- Display each 10th channel displays each tenth channel e.g. channels 1,11,21…
- Save selected channels to a file … saves selected channels to files of different format (see the description of the “Saving selected channels to file» window below.