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In some instances, the commands in the Raster Cleanup menu on the ArcScan toolbar are disabled. The Raster Painting Toolbar command is enabled, but upon activating the toolbar, no tools are enabled.
Below are several causes associated with this issue:
• The raster dataset is not symbolized with two unique classes.
• The pixel type of the raster dataset is not an 8-bit, unsigned integer.
• The raster dataset is not in a supported format. The ArcScan Raster Cleanup commands only support TIFF, IMG, or GRID formats.
ArcScan must be enabled in the ArcMap Extensions window, and an edit session must be started prior to using the toolbar. For more information, refer to the following documentation, Problem: ArcScan toolbar is disabled.
Depending on the cause, use one or more of the options listed below to resolve the issue.