When previewing or displaying an 11 bit image in ArcGIS, it displays completely black.
An 11 bit image is a 16 bit image that does not use the full range of available values. An 11 bit image only uses cell values of 0 to 2047, and a 16 bit image can store values from 0 to 65535. Since an 11 bit image only uses a small portion of the available range, it will appear very dark when displayed.
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