The value of the generated GCA Map is zero in every voxel.
I used the voxel-wise approach and set the coordinates to a random voxel within the brain, including a radius of 2mm. My input dataset contains 3D EPI files (TR 2.0s, 300tps, analyze format (hdr./img. pairs, tlrc transformed). The GCA is being computed by the software and everything seems fine so far. However, when I open the GCA Maps with the slice viewer, the following error box pops up: „Illegal Origin ( 0 0 0). I presume the origin is (46 55 46)“ and the viewer is all black.
Do you have an idea where there might be an error? I have tried running the GCA for different subjects, I have also tried to find help online, but without any luck.
And I noticed there are several mask files with different dimensions in the rest/mask folder, which one is the default mask used by