EM 1110-2-2907
1 October 2003
256 brightness levels (8 bits)
16 brightness levels (4 bits)
4 brightness levels (2 bits)
2 brightness levels (1 bit)
Figure 2-28. Brightness levels at different radiometric resolutions. Im-
age developed for USACE Prospect #196 (2002).
Figure 2-29. Raster array and accompanying digital number (DN) values for a
single band image. Dark pixels have low DN values while bright pixels have high
values. Modified from Natural Resources Canada image
html.
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