topic Re: Raster catalog color issues in Data Management Questions

Raster catalog color issues

ChrisMathers — Fri, 10 Sep 2010 14:13:26 GMT

We just moved to SDE and I made raster catalogs (unmanaged) for five years of aerials. The aerials look fine when I bring them into a map individually but when I bring in the catalog, the colors look like an oil slick. Anyone know why the catalogs have made my rasters all double rainbow?

Re: Raster catalog color issues

RobertBerger — Fri, 10 Sep 2010 14:34:47 GMT

Greetings,

do you mean when you see the pixels they changed colors, or did the footprint polygons change colors? If the problem is the footprints then it might be because your source images are no longer accessible.
Can you post a screenshot of your issue?

Robert

Re: Raster catalog color issues

ChrisMathers — Fri, 10 Sep 2010 15:08:06 GMT

Attached is a page with two data frames. The top frame is the raster catalog. The bottom frame is the individually added .sid files.

Re: Raster catalog color issues

RobertBerger — Fri, 10 Sep 2010 17:39:29 GMT

Hi,

I think part of the reason why the datasets look like they do is because you load them into SDE. In SDE you can only have a managed raster catalog. Unmanaged raster catalogs are not supported. As such you load your data into SDE, and part of the loading creates statistics. This is why certain tiles display differently. You can try to load an unmanaged raster catalog in a file geodatabase or personal geodatabase to see if you get the same results.
If you have version 10 you could also try a mosaic dataset (like an unmanaged raster catalog in SDE).
Let me know if this helps.

Robert

Re: Raster catalog color issues

ChrisMathers — Fri, 10 Sep 2010 18:10:02 GMT

Actually this is in a file gdb. My boss had me make the raster catalogs and we were going to load them into the SDE at night along with some other data. Previously we have been using raster catalogs that appear to just be a dbf with the file paths as attributes. These are not stored in a geodatabase of any kind.

Re: Raster catalog color issues

RobertBerger — Fri, 10 Sep 2010 23:12:59 GMT

Does it help if you change the renderer stretch type to none?

Re: Raster catalog color issues

ChrisMathers — Mon, 13 Sep 2010 12:29:32 GMT

Stretch type was none already. The RGB band however were all set to <default> so I set them appropriatly to 1,2,3 and like magic the rainbow effect is gone. Thanks for you help.

Re: Raster catalog color issues

ByronVriend — Tue, 14 Dec 2010 17:44:04 GMT

Thanks for the helpful post. I had the same issue, the bands were all set to default and the stretch type was on standard deviation. It is good now!