|
ECW files are compressed aerial photography images. The ECW file format was developed by Erdas, Inc. and Think GIS makes use of some software components licensed from that company to display these images.
NOTES:
•Think GIS Supports v2 and v3 ECW files.
The table below compares the performance of different aerial photography file formats:
|
Format
|
Extension
|
Storage Space
|
Drawing Speed
|
|
GeoTiff
|
TIF
|
Large
|
Fast
|
|
ECW
|
ECW
|
Small
|
Slower
|
|
MrSid
|
SID
|
Small
|
Slowest
|
|