I got a task to collect sample for my ongoing project (Cartago, Colombia) and I found that it might be helpful for OSM mapper. In JOSM we can get many TMS, WMS service, also we can use very high resolution satellite image after processing. But here I’m mentioning about the very useful plugin for JOSM called PicLayer. Using this plugin we can import simple jpeg image and we can calibrate. After doing few adjustment of the image it is working superb and solve my problem. Any one can try this!