I have a bunch of 1 bit rasters (700+) of scanned maps that I need to convert to 8-bit rasters. It's the only way Geosoft will recognize the spatial coordinates of the TIF as they don't deal in 1bit Rasters. The way I have done this in the past is to use the Copy Raster tool and check off the "Convert 1bit to 8bit" option. It has worked well up to this point.
The result I'm getting today is a raster with one value (or no value, depending on how you look at it). The symbology shows 16 as a high and 16 as a low, or sometimes it's 0 and 0. I haven't figured out why the different results, but they are both undesirable.
These raster's are not georeferenced yet.
Does someone else know of a way to do this conversion? Or do they know what checking off this option in the Copy Raster tool does compared to the "Pixel Type" combo box which has a choice for "8_BIT_UNSIGNED"? Any insight would be appreciated.
Edit: Here is an example of the Tif I'm converting, with it's symbology and the symbology of the converted Tif.
As you can see, there is definition in the original.