When open exactly the same image (hdr + img format), and save into mhd format using Slicer 3.6 and Slicer 4.10.2 gives different .mhd file regarding RAI VS RPI and transformation Matrix as below and attached pic.
Slicer 3: RPI, 1,-1,1 matrix
Slicer 4: RAI, 1,1,1 matrix
The paired info above becomes consistent indeed for the raw data reading order.
But my confusion is, when viewing the image, Slicer 3.6 shows differently than Slicer 4.10.2.
So my questions are:
- Why Slicer 3 and Slicer 4 has this difference when saving .mhd? any motivation for the update?
- Why exactly the same image shows differently in Slicer 3 and 4?
Any advices are highly appreciated! Thank you very much.
Best regards, Xiaogai