Questions about masks/cropping

[John Muccigrosso]

Was working on a pano today and needed to do some masking, which got me thinking:

1. There was some talk about this in the original announcement of this functionality, but do I have it right that Hugin clips the mask to the image boundaries, even if the mask looks like it goes outside them?

2. Similarly, does the optimization know about the masks? Does it ignore control points within cropped areas? Or are the effects of the masks and cropping just limited to the final image?

TIA.

[T. Modes]

Am Dienstag, 21. Oktober 2014 15:12:50 UTC+2 schrieb John Muccigrosso:

Was working on a pano today and needed to do some masking, which got me thinking:

1. There was some talk about this in the original announcement of this functionality, but do I have it right that Hugin clips the mask to the image boundaries, even if the mask looks like it goes outside them?

Yes

2. Similarly, does the optimization know about the masks? Does it ignore control points within cropped areas? Or are the effects of the masks and cropping just limited to the final image?

Yes and no. The photometric optimizer ignores mask areas. The geometric optimizer takes also cp inside mask into account. (But there is a function to remove cp inside masks.)
 

[John Muccigrosso]

Actually this is what I'd prefer it to to, so you get the advantage of more control points, even if you don't want Hugin to use a certain area from a certain image.

Thanks.