Not sure that Monteverdi is taking into account user preference relative to minimum number of pixel
Mantis Issue 1473, reported by mgrizonnet, assigned to gpasero, created: 2017-10-19
In Monteverdi, in the preference panel the user can select a number which corresponds to the minimum size on which overview can be generated for imported images. The default value is 4096
The first issue is that it is not clear if this number correspond to the image size (X or Y dimension) or a total number of pixel. Perhaps we can add a tooltip to describe this in the input widget.
Secondly I'm not 100% sure that Monteverdi takes theis preference into account. I change it to 3000 and open a 3500*3500 image and monteverdi did not open the overview generation window.
BTW, in the source code I found the variable OVERVIEWS_SIZE_DEFAULT but I did not found where the size is used and where the size check is performed before launching the gdal ovr generation.
1508851605 - gpaseroFew things to know :
- When your image already has overviews (reported by GDAL), you won't see the OverviewBuilder popup.
- The number of pixels is a threshold for the smallest of the image dimensions. For instance with a setting at 100 pixels and :
- an image of 75x150 : no popup
- an image of 110x120 : popup
1508853910 - gpaseroTooltip added in release-6.2:
https://git.orfeo-toolbox.org/otb.git/commit/ba76e503c4f09b2f290b903fe2b15941f644416f