I want to Geo-reference a tiff image contain a Map for a specific region, I need to add this region(image) and Geo-reference it on the Google map, SO I can see on the map for the region I select the image which I have inserted.
the image also need information such as the Latitude and Longitude of corners and size, and the pixel per meter measurement.
How to do the correct Geo-reference for that ?
You can use QGIS Georeferencer plugin: http://www.qgis.org/en/docs/user_manual/plugins/plugins_georeferencer.html
What you will do is open a map in QGIS and and identify control points to define where your tiff file fit inside this map. Then QGIS will export a geo referenced tiff file.
Alternatively, you could do it manually by writing a .wld file. You have to know your image resolution and the latitude and longitude of the tiff corners. Documentation is here: http://mapserver.org/input/raster.html#georeference-with-world-files
Once your tiff will be georeferenced, either with via QGIS or with a wld file, you will need a map server service to serve it to GoogleMaps. Look for the tutorial for MapServer or GeoServer on Google. If your tiff is not to big, you can also use GDAL2Tile: http://www.klokan.cz/projects/gdal2tiles/
