Parent Topic: IWORKS

Image Info

The Image Plane Info panel contains functions for viewing descriptor and data source information, as well as modifying the image plane descriptor, data type, and main image window gun mapping. The Image Plane Info panel can be launched by selecting the ``Image Info'' option from the ``View'' pulldown menu in ImageWorks.

The first section of the panel is the ``Image Planes'' list. This is the list of image planes in memory with their descriptors. One plane at a time may be selected from this list, to view and modify details in the ``Selected Object'' area of the panel.

The image plane number or ``Id'' of the selected image plane is shown just below the ``Selected Object Info'' title bar. Following this is an editable image plane descriptor. This descriptor is normally loaded from the source file and may be saved to the destination file if the image plane is saved.

Also in this area is a toggle switch to change the current image plane between storing data in 8-bit unsigned, 16-bit signed, and 32-bit floating point form.

Beside the toggle switch are three push buttons representing whether the current image plane is currently mapped to the red, green, or blue colour guns in the Main Image Window. It is possible to press these buttons to change the video gun mapping. This is the primary method of viewing image planes beyond the up to sixteen image planes which appear on the Control Panel.

Below the description string are fields for viewing or entering the minimum and maximum values used to scale 16-bit and 32-bit image planes to 8-bit values when displaying, or converting to 8-bit. These text fields are only enabled for 16-bit and 32-bit data. Normally a reasonable minimum and maximum are computed for scaling each time the general enhancements are computed. However, these values can be overridden to control the way scaling takes place.

Following this is the source file name, channel number, and subwindow if the contents of the image plane were loaded directly from a file. This information will be blank if the image plane was loaded using IVI, or created by image editing.

The Georeferencing section displays georeferencing information of a selected image plane. This section is known as a GeoEdit control. There is an option menu that can be used to display different coordinate systems. The georeferencing information of each image plane can be edited.

Modifying the georeferencing information in the Image Info window is not retained once the ImageWorks session is ended. The File Utility should be used to make permanent changes to the disk file.

See Also: GeoEdit


Parent Topic: IWORKS
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