I really miss the possibility to use a fourth point to transform the picture. As it is now I can't project a aerial photo taken on an angle onto the map. I think this is called perspective distortion. --Gorm (talk) 12:54, 12 May 2015 (UTC)
Don't open a new image without a map already open
Warning: if you open a new image without a map already open, it will get permanently remembered to live at the equator. So one must rename the image and reload it. Jidanni (talk) 02:06, 21 January 2018 (UTC)
Do not press "Drag to scale picture in X and Y axis."
Method to view "Quick animated how-to" better
Is this suitable for loading large images?
I have a ~250mb PNG with about 5x5km at some 50cm resolution, but get an error that JOSM runs out of memory. Should I be able to get this image into JOSM using the plugin? Øukasz (talk) 10:00, 21 February 2020 (UTC)
- Based on (5,000 m / 0.5 px/m)^2 * 3 Color Bytes/px that uncompressed image would need 300 MByte memory. Has it only 10,000 pixel in square? --Hb 20:10, 21 February 2020 (UTC)
- The decoded image alone needs 768 Mbyte without being calculated. The memory configuration for java virtual machines is troublesome, see https://josm.openstreetmap.de/wiki/Download#Outofmemory --Hb 22:53, 24 February 2020 (UTC)