hirdr2isis

This program will import a PDS formatted HiRISE RDR image into an Isis cube. The normal generic application is pds2isis, however HiRISE images require special consideration. These considerations are based upon requirements placed on the process of converting original HiRISE ISIS products into PDS archive format and back again. The HiRISE team requires a certain level of preservation so that science analysis on the PDS archived product, particularly in the ISIS system, is not compromised.

One consequence of the PDS storage requirements is the conversion of ISIS data to unsigned 16-bit integers. This data storage type is not support inherently in the ISIS system, but this application converts it to the best data representation possible - 32-bit floating point values. Comparisons of the conversion process falls within acceptable precision loss (approximately 1.0E-6).

Much of what this program does is ensure labels are properly copied and translated from PDS archival form that is consistant and highly comparable to the original ISIS product. The strictest requirement is label integrity which applies mainly to geometric datum contained in the ISIS labels. The goal is to ensure geometric behavior is within acceptable limits of the original product.