User talk:Arunmozhi
I have been trying hard how to go about mapping India more efficiently as the data was very distributed and rarely available in a compiled format. Now I have found a way of mapping major roads, places. These two things rarely change in the landscape. So even very old sources of data can come very helpful at times. I got my hands on the old 1940s maps of US army corps which are available online at http://www.lib.utexas.edu/maps/ams/india and that proved to be a boon for mapping roads for me.
Here are the steps I followed:
1.Use JOSM for mapping - include the WMS and PicLayer Plug-ins.
2.Download the map area of the region to map from http://www.lib.utexas.edu/maps/ams/india
3.Open JOSM and get the OSM data for the region to map.
4.Load the JPG image of US Army Corps map using the PicLayer
5.Adjust the width and alignment of the map. (The best technique is to place two points at corner LAT-LONGs and align the map on those two points)
6.Use the WMS plug-in to load the Landsat imagery (I chose Black&White imagery for clear lines).
7.By switching between the piclayer and lansat layer we can deduce the correct path of roads and places on the map.
The work is tedious sometimes when the imagery is poor, but its worth the effort and some good roads can be drawn by this way. There may be some issues about accuracy for some people, its there, but I suggest this method for remote areas which no one is going to map for at least a year from now. Moreover the major roads don’t change and that pretty good method.
Missing file information
Hello! And thanks for your upload - but some extra info is necessary.
Sorry for bothering you about this, but it is important to know source of the uploaded files.
Are you the creator of image File:Training16.png ?
Or is it copied from some other place (which one?)?
Please, add this info to the file page - something like "I took this photo" or "downloaded from -website link-" or "I took this screeshot of program XYZ" or "this is map generated from OpenStreetMap data and SRTM data" or "map generated from OSM data and only OSM data" or "This is my work based on file -link-to-page-with-that-file-and-its-licensing-info-" or "used file downloaded from internet to create it, no idea which one".
Doing this would be already very useful.
Licensing - photos
In case that you are the author of the image: Would you agree to open licensing of this image, allowing its use by anyone (similarly to your OSM edits)?
In case where it is a photo you have taken then you can make it available under a specific free license (except some cases, like photos of modern sculptures in coutries without freedom of panorama or taking photo of copyrighted artwork).
Would you be OK with CC0 (it allows use without attribution or any other requirement)?
Or do you prefer to require attribution and some other things using CC-BY-SA-4.0?
If you are the author: Please add {{CC0-self}} to the file page to publish the image under CC0 license.
You can also use {{CC-BY-SA-4.0-self|Arunmozhi}} to publish under CC-BY-SA-4.0 license.
Once you add missing data - please remove {{Unknown|subcategory=uploader notified 2022, June}} from the file page.
Licensing - other images
If it is not a photo situation gets a bit more complicated.
See Drafts/Media file license chart that may help.
note: if you took screenshot of program made by someone else, screenshot of OSM editor with aerial imagery: then licensing of that elements also matter and you are not a sole author.
note: If you downloaded image made by someone else then you are NOT the author.
Note that in cases where photo is a screenshot of some software interface: usually it is needed to handle also copyright of software itself.
Note that in cases where aerial imagery is present: also licensing of an aerial imagery matter.
Help
Feel free to ask for help if you need it - you can do it for example by asking on Talk:Wiki: new topic.
Please ask there if you are not sure what is the proper next step. Especially when you are uploading files that are not your own work or are derivative work (screenshots, composition of images, using aerial imagery etc).
If you are interested in wider discussion about handling licencing at OSM Wiki, see this thread.
(sorry if I missed something that already states license and source: I am looking through over 20 000 files and fixing obvious cases on my own, in other I ask people who upladed files, but it is possible that I missed something - in such case also please answer)
--Mateusz Konieczny (talk) 18:19, 17 June 2022 (UTC)