Info
The Info
plugin provides a pane of commonly useful metadata about the
focused channel image. Common information includes some metadata
header values, coordinates, dimensions of the image, minimum and
maximum values, etc. As the cursor is moved around the image, the X, Y,
Value, RA, and DEC values are updated to reflect the value under the cursor.
Plugin Type: Global
Info
is a global plugin. Only one instance can be opened.
Usage
At the bottom of the Info
interface are the color distribution
and cut levels controls. The selector above the cut levels boxes lets
you chose from several distribution algorithms that map the values in
the image to the color map. Choices are “linear”, “log”, “power”, “sqrt”,
“squared”, “asinh”, “sinh”, and “histeq” (histogram equalization).
Below this, the low and high cut levels are shown and can be adjusted. Pressing the “Auto Levels” button will recalculate cut levels based on the current auto cut levels algorithm and parameters defined in the channel preferences.
Below the “Auto Levels” button, the status of the settings for “Cut New”, “Zoom New”, and “Center New” are shown for the currently active channel. These indicate how new images that are added to the channel will be affected by auto cut levels, fitting to the window and panning to the center of the image.
The “Follow New” checkbox controls whether the viewer will automatically display new images added to the channel. The “Raise New” checkbox controls whether an image viewer window is raised when a new image is added. These two controls can be useful, for example, if an external program is adding images to the viewer, and you wish to prevent interruption of your work examining a particular image.
As a global plugin, Info
responds to a change of focus to a new channel
by displaying the metadata from the new channel.
It typically appears under the “Synopsis” tab in the user interface.
This plugin is not usually configured to be closeable, but the user can make it so by setting the “closeable” setting to True in the configuration file–then Close and Help buttons will be added to the bottom of the UI.