Performed initial evaluation of BiCal algorithm on Greg Chang's 7T hip dataset.

Non-uniformity (measured by 48 manually placed seeds) is reduced from the original NU=0.397, down to NU=0.127.

original with seeds,  NU=0.397

BiCal-corrected, NU = 0.127

FireVoxel Build 128I is released.

Provided an additional  Perfusion-IF adjustment variant when both Peak and Tail of the curves are used for matching.  Additionally provided User an option to enter the Peak scaling constant.

FireVoxel Build 128H is released.

Verified that present Sokoloff model is working with new "Adjusted Perfusion-derived IDIF".
Note (!), in limited experiments, Constant-extended IDIF worked much better than the truncated IDIF.

Implemented a stand-alone function for Perfusion-IF  adjustment using PET-IF.  This approach allows to reuse existing Sokoloff model and NOT to introduce custom Sokoloff model, resulting in simplicity. User has an option either to Truncate  adjusted IF, or extend by the last constant.

User Saves adjusted IDIF using "Save" button, then loads it as a regular input function into Sokoloff.

Finalizing the Dialog "Specify two file names".  This is required to Perfusion-derive IF adjustment to PET