Autopano Video - Masking the nadir with a blended patch
In a previous tutorial , we explained how to patch the Nadir using a logo or an image that would completely mask the bottom of your stitch. But for some occasions, you might want to mask something (like a tripod) in a more subtle way. This will only work for static shots.
We shot a timelapse using the Omni rig mounted on a tripod. We have 6 videos shot with GoPro Hero 4 Black cameras and we want to make the tripod disappear. We imported a stitch using the Omni Importer and are satisfied with the quality we have right from the start. The only thing we need to make sure of is that we use the “sharp” blending mode in AVP because we are going to use masks later on, and they don’t work with the smooth blending preset.
Now, we can go and edit our reference panorama in APG.
Editing in Autopano Giga
Using the crop tool, select a square that encompasses your whole tripod (a square makes it easier to re-import it afterwards. And make sure it is perfectly centered). Write down the values you find in Theta and Phi (with a square, these should be identical). Here, it's -40 / 40, so we know for later that the field of view is gonna be 80. If your tripod is smaller, it might be -30 / 30, so a FOV of 60.
Render the cropped zone and edit it in Photoshop to make the tripod disappear (select the tripod using the Lasso tool, go to edit/fill and choose content-aware fill). Save it as a jpeg file.