topic Re: Convert RGB To Float or Integer ArcMap 9.2 in Data Management Questions

Convert RGB To Float or Integer ArcMap 9.2

johnmcallister — Thu, 09 May 2013 15:40:08 GMT

Hi, I have an RGB image that visually works as contiguous, single values classified data, but it was delivered to me as an RGB. I need to convert this into a float or integer raster so I can make isolines and compare this with topographic contour lines. I have Spatial Analyst but I am not familiar with Python and would prefer not to code anything or write a formula. This will sound blunt, but if you have an answer but it involves either of these please don't post it, I don't have the time to finish developing ESRI's software for them. I need point and click, GUI tools, which is why I purchased the software. I don't have the budget for an exhaustive approach. If there are any extensions that can make this easier please list. I'm looking for something that specializes in Raster conversion (I already have Spatial Analyst, yes I see the Map Algebra tool) but haven't found one yet.

Re: Convert RGB To Float or Integer ArcMap 9.2

Luke_Pinner — Thu, 09 May 2013 23:56:14 GMT

Use the Combine tool.

Oh and how's the view from up there on that high horse...? Scripting is for extending not "finishing" software. I'm not aware of any GIS software that doesn't support some form of scripting.

Re: Convert RGB To Float or Integer ArcMap 9.2

RobertBorchert — Fri, 10 May 2013 18:12:42 GMT

You have Spatial analyst so you have the proper extension.

Use the Int tool.

Converts each cell value of a raster to an integer by truncation.

Try it on a copy (disclaimer)

Hi, I have an RGB image that visually works as contiguous, single values classified data, but it was delivered to me as an RGB. I need to convert this into a float or integer raster so I can make isolines and compare this with topographic contour lines. I have Spatial Analyst but I am not familiar with Python and would prefer not to code anything or write a formula. This will sound blunt, but if you have an answer but it involves either of these please don't post it, I don't have the time to finish developing ESRI's software for them. I need point and click, GUI tools, which is why I purchased the software. I don't have the budget for an exhaustive approach. If there are any extensions that can make this easier please list. I'm looking for something that specializes in Raster conversion (I already have Spatial Analyst, yes I see the Map Algebra tool) but haven't found one yet.