Some people argue against using CC-BY aerials for mapping. I do not see why that should be of any concern. In the EU aerials are given the same protection as photographs made by e.g. passport photo machines. Commentary to EU court of justice opinions do not even give them database protection (see note 1). Sounds reasonably to me: What would be the use of protection, the pixel at coordinates x,y has colour rgb(x,y,z)?
Contrary, the abstraction is given high value: i.e. to recognise a building, the kind of being a church, a carport, &c. from the pixel mesh. That is what turns a database/map into a copyrightable subject - something that OSM users do a lot, and using CC-BY aerials.
Should that all be reverted? I am talking about lots of edits.
Nah, the aerials are photographs, CC only applies to what is copyrightable. That says: The editor that shows the images must name the originator of the image.
What I as a HI (Human Intelligence) glance from those images is not in the image. I have exclusive rights in that, which I can share under ODBL. My point of view!
PS: It is considered due diligence to name the originator of aerials used in CS metadata, so others can learn about it. And not move a building half a meter because bing shows it there, while I (and many others) mapped it from a much more exactly aligned one.
As said, I wouldn’t bank on aerial images not being protected. The commentary you linked to simply tries to juxtaposition them as different to a map for purposes of the argument that a map has protection as a sui generis database on top of classical copyright.
But I would argue that while an individual aerial image will at best only have protection via the lesser “photo protection” statues for non-creative images, the actual works that are used are datasets of many such images, carefully selected and processed. In the case of the larger imagery mosaics even from multiple independent sources with substantial additional investment, and I believe that they clearly tick all the required boxes for sui generis database protection.
With other words using a licence would seem to be quite appropriate.
PS: assuming that we are talking about something published in the EU.
My words, aerials put into a WMS in my view afford database protection. Yet, that protection is not of much use, the difference mostly, that it lasts 15 years instead of 50, so creators will be much more happy with what photo protection affords them.
My opinion: All the processing of aerials into rectified ortho-photos still will not get them the p.m.a+70 protection – Do you know of precedence? I did not find any. Especially, if there are buildings, roads, etc. in the ortho-rectified-aerials data, or just colour values? You said, LWG does not see derivative works, much as I do.
It gets a bit more interesting when using queries into the DGM to get elevation data, which is only protected as a database. This will open the question: What makes a use a substantial extract. As data has billions of points, I’d see the bar rather high. Don’t you?
Sorry Mammi, I see, please excuse the typo. There is more wrong with my post. I was a bit upset.
I also care about the project. Looking at Contributors - OpenStreetMap Wiki not all aerials available in the editors have waivers, some are listed as CC-BY only, some are not listed at all. Some waivers read like, yes it is CC-BY, really. Hope it never comes to play.
I did applaud your work done to make the wiki free from images with unclear copyright status. I guess this is ongoing still. Curiously, I felt the hardliner in that topic, compared with lots of statements by others. Photos is a very clear-cut matter and there is a small industry at work in discovering violations.
E.g. esri, which is a standard layer in JOSM pulls in CC-BY only aerials.
UPDATE: In my region, the very same aerial is available CC-BY only, CC-BY + waiver and from esri quasi public-domain. A bit of browsing sent me here Using aerial imagery - OpenStreetMap Wiki - gonna read that now!
I think esri pays for them. The producers are their customers, they might get a good deal. What makes me wonder a bit, the wiki documentation says, esri images need no attribution while on the other hand the producers (in my local area) are not willing to make them available to OSM under anything less than CC-BY-4.0.
I should mention, there is another fourth or fifth? provider of the very same aerial, that has a special door for JOSM editor users, where tracing under ODbL is allowed, but it too requires attribution “in the created work”, but curiously keeps the photos themselves “all rights reserved”.
In my area esri sources still other producers, zooming in/out switches products - they sometimes even have winter images. Quite nice. Nowhere does it show in my editor (JOSM) where the images actually come from. Perhaps in arcgis this is shown?
From my point of view, my own contributions to OSM to a substantial (pun not intended) degree turn OSM into a work of literature kind of database (Datenbankwerk in German); And I know of lots of other contributions of others that amount to the same. I can live with my/those contributions licensed as if they belonged to the much lesser sui-generis database (Datenbank in German) conditions.
I have seen you advise people on how to add data derived (literally, in a sense that fully falls under copyright in all jurisdictions) from a third party source to osm.
I have no feelings against that. After all, it actually only affects downstream consumers, so I do not share your fear of OSM going down from such mappings. Yet, from my reading of legalese, resulting data though cannot be relicensed under ODbL and therefore should not be in the data.