Poor quality Tif files

[pontoon]

I am trying to tidy up a couple of Tif images from scanned Velos (Remember those really old plasticised drawing that engineers used to use? Well we've still got heaps of them.) I don't have the software I have been using in the past (Microstation with IrasB)
How do you despeckle stuff with AutoCAD?
Also how do you merge 2 tif files to either a tif file or a dwg? I've used insert raster image and positioned them so it's just tidying up to do.
Hope this makes sense.
Thanks

 

[xgrigorix]

Have you take a look at Autodesk Raster Design?

http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=2600114

 

[pontoon]

The reason I'm trying to do this on AutoCAD is because of the beauracracy in the company I work for is so bad it took me over a year to get Microstation v8 and I've got IRASB on order, but I suspect it will be a while before I get it. I can't see me getting any other upgrades any time soon.
I've had a look about on autodesk web site and I haven't found anything to help yet. Any advice would be greatfully received.

Thanks