
458 ENVI Extensions in IDL
FIGURE C.1
Illustrating ENL determination in ENVI Classic.
values in the zoom window, the mid-point of which will give an ENL estimate
for the full image. An example is shown in Figure C .1.
C.2.2.5 Minimum mean square error filtering o f polarimetric SAR
imagery (Section 5.4.3.1)
MMSE_FILTER_RUN (Radar/Polarimetric Tools/MMSE polSAR filter)
MMSE_FILTER_RUN5 (Toolbox/Extensions/Chapter5/MMSE polSAR filter)
The polarimetric SAR image is ass umed to have been generated by the
POLSARINGEST_RUN extension of Section C.2.2.3 above. The user is asked to
enter the ENVI filename and the equivalent number of looks. The filtering
operation ...