Using QGIS2.4.0 I just added 2 maps to an existing project. Both are scanned images of pre-1800 plans. One is a jpg file, I georef'd and added to QGIS no problem and plan displays in the project. I carried out exactly the same process with the other plan, a tif file, and the process completed but the plan just displays as a black rectangle, can anyone advise a very novice novice what might have gone wrong please.
Could it be because the jpg was a colour image, but the tif is a greyscale? I've had problems with greyscale images before.