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Topics - DavidD

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Bug Reports / GeoTIFF Problems with several layers
« on: April 15, 2021, 03:08:21 PM »
I have a RGB+NIR orthomosaic and when I export it, it seams to have some faulty  encoding:

Every further processing step in gdal resports:
TIFFReadDirectory:Sum of Photometric type-related color channels and ExtraSamples doesn't match SamplesPerPixel. Defining non-color channels as ExtraSamples.

So there seems to be a problem in how the image is stored.
I'm running 1.7.3 build 12136

Best, David

Both the MBTiles and the Geopackage standard supports WEBP for the embedded image format and Metashape already includes the WEBP driver (for importing images).
Being able to export MBTiles/Geopackages with WEBP compression brings the added benefit of both having an alpha layer (like in PNG) and better compression compared to JPG.

Bug Reports / EXIF Information not detected in WEBP images
« on: June 09, 2020, 03:23:07 PM »
Hi, I'd like to report what seems to be a bug.
We exported our raw images as JPEGs and as WEBPs in order to test out WEBP images, as they are smaller.

Unfortunately Metashape seems not to read the EXIF information from the WEBP images. Only from the JPGs. We've seen something similar with PNG, by the way.
I attached the EXIF information of both the WEBP and the JPG generated by exiftool as text files.
The two screenshots show, how Metashape uses the JPG exif information but not the WEBP exif information.

We'd very much apprechiate a fix for this bug, because this can drastically improve our workflow. Thanks a lot!

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