Our client provided us with an enormous (>7GB) Pix4D OrthoMosaic from a recent drone survey that will not import into Civil 3D. The client for some reason did not tile the .tiffs. The image can be downloaded from the link below:
Researching this, it sounds like it is because of a compression factor being applied when generating the ortho-mosaic in Pix4D. I found a thread listing some options to covert the .tiff to a non-compressed .jpg format. The post listed InfanView as an option, which crashed on me when trying to export out. I tried the 2nd option (Global Mapper), but it will not work either unless you buy a $600 license. I have not tried QGIS yet, but I have ESRI ArcMap 10.5.1 and want to try using that. Does anyone know the steps to convert the compressed .tiff from Pix4D to uncompressed with ArcMap and then export out “tiled” .jpgs that can be inserted more efficiently to Civil 3D? Or can I open this .tiff in my Pix4D Mapper to parse it out to smaller tiles, so I can save them out to .jpg via the 3rd party options listed above?
Also, what is the status of fixing this issue in Pix4D itself? Autodesk Civil 3D is a very popular platform that many of us use to analyze our Drone data. It seems like these “extra” steps can be programmed away within Pix4D itself. I am hoping the Pix4D developers are working on this???