1. sped up the program by deducing redundancy in compositing when calculating the pixel-level offset between sensors. 3. created some functions for duplicated line sections 2. misc minor changes
1. sped up the program by deducing redundancy in compositing when calculating the pixel-level offset between sensors.
3. created some functions for duplicated line sections
2. misc minor changes

jdbcode/LandsatLinkr,DougFirErickson/LandsatLinkr