topic Re: problem with arcscan in Data Management Questions https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61178#M3481 <HTML><HEAD></HEAD><BODY><SPAN>The raster must be a </SPAN><A href="http://resources.arcgis.com/en/help/main/10.1/index.html#//000w00000007000000">classified into two colors</A><SPAN>, per the help on ArcScan.&nbsp; You cannot use it to edit a 3 band RGB raster if that is the color one you have.</SPAN></BODY></HTML> Mon, 24 Jun 2013 10:46:50 GMT JeffreySwain 2013-06-24T10:46:50Z problem with arcscan https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61177#M3480 <HTML><HEAD></HEAD><BODY><SPAN>hello,</SPAN><BR /><SPAN>i want to use ArcScan to vectorize my scanned images, my images are .tiff</SPAN><BR /><BR /><SPAN>first I put my tiff image into ArcMap (the image is with colors) I geo-reference with control points then I rectify the image,</SPAN><BR /><SPAN> the concern is when I try to open an edit session to activate the arcscann tools an error show up saying: error: No layer can be</SPAN><BR /><SPAN> updated</SPAN><BR /><BR /><BR /><SPAN>thanks for responding </SPAN><BR /><BR /><SPAN>sincerely yousr</SPAN></BODY></HTML> Fri, 21 Jun 2013 09:39:23 GMT https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61177#M3480 yousradaoudi 2013-06-21T09:39:23Z Re: problem with arcscan https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61178#M3481 <HTML><HEAD></HEAD><BODY><SPAN>The raster must be a </SPAN><A href="http://resources.arcgis.com/en/help/main/10.1/index.html#//000w00000007000000">classified into two colors</A><SPAN>, per the help on ArcScan.&nbsp; You cannot use it to edit a 3 band RGB raster if that is the color one you have.</SPAN></BODY></HTML> Mon, 24 Jun 2013 10:46:50 GMT https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61178#M3481 JeffreySwain 2013-06-24T10:46:50Z Re: problem with arcscan https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61179#M3482 <HTML><HEAD></HEAD><BODY><P>I have a similar problem.&nbsp; tool works perfectly until the image is georeferenced.&nbsp; Did you find a solution?</P></BODY></HTML> Tue, 21 Oct 2014 16:43:33 GMT https://community.esri.com/t5/data-management-questions/problem-with-arcscan/m-p/61179#M3482 AnnaBuchheit 2014-10-21T16:43:33Z