Image processing is the best I have worked with

Geomatica is the image-oriented application that combines remote sensing, GIS, cartography and photogrammetry into a single environment. The installation of Geomatica was very simple, PCI’s proprietary PCIDSK file format is useful in bringing together multi-source information about your coverage area, making it easier for you to manipulate your data for analysis and keep things organized. Software is cheaper than other software in general. The application has fast and more automation workflows.

The user interface , it is very easy. Data conversion is very much easier.