Consider the case, you would be mapping a house, where the neighbours have high sense of privacy and make a big noise of not wanting their private property be in your 360 tour outside pictures.
For this, it would be beneficial, if in the 360 tour, we could define from what starting angle to what end angle, the virtual tour visitor can rotate the view.
OR from what areas of picture will be blurred.
End result would be, from outside views, you can look to directions, where the promoted property is, but if you try to look to other directions (e.g. near neighbors), either the User Interface stops you doing that OR the image would just be blurred for those directions.
For Blur, it would be simple thing in stich to select starting angle and stop angle for areas on the image to be blurred.