topic Re: CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG in Data Management Questions

CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG

WentaoChe — Tue, 06 Apr 2010 00:11:17 GMT

Hi,

CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG, but it works for BIL, BIP, BSQ, DAT,IMG,TIFF.
Here is the error message:

in_band = "rr"+";"+"gg"+";"+"bb"
out_file = 'test.png'
gp.CompositeBands_management(in_band, out_file)

arcgisscripting.ExecuteError: ERROR 000446: Output file format with specified pixel type or number of bands or colormap is not supported. Refer to the 'Technical specifications for raster dataset formats' help section in Desktop Help.
Failed to execute (CompositeBands).

Wentao
KKC, Tokyo, Japan

CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG

JieZhang — Wed, 07 Apr 2010 17:09:36 GMT

Hi Wentao,

As the error message says, please refer to the technical specification for Raster dataset format. For example, we only support 8bit and 16bit PNG format, and the band number is limited to 1 or 3 band.

http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?id=3103&pid=3101&topicname=Technical_specifications_for_raster_dataset_formats

Thanks
Jie

Create an Integer raster before outputing to PNG

WentaoChe — Thu, 08 Apr 2010 04:02:33 GMT

Hi Jie,

Thank you for your reply.

Just as you wrote, my Grid rr, gg, bb are 3 Floating Grids ranging from 0.0 to 255.0, I should set those 3 Grids as Integer type before using CompositeBands to output to a PNG.

Thanks again,

Wentao,
KKC, Tokyo, Japan

Re: CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG

SaraGilbert — Wed, 13 Jul 2011 23:27:41 GMT

How do you change to integer?

Re: CompositeBands does not work for BMP, GIF, JPEG, JPG2000, PNG

EricRice — Thu, 14 Jul 2011 16:10:32 GMT

Sara,

You can run the Int tool from Spatial Analyst or 3D Analyst.

Regards,
Eric