[gdal-dev] gdal_translate -scale with PNG

[Stephen Mather]

I thought I'd tried that and it failed, but it looks to be just a problem of
stale statistics.  Thanks Marius.

Steve


On Wed, Jul 27, 2011 at 10:16 PM, Marius Jigmond
<mariusjigmond at hotmail.com>wrote:

>  On 07/27/2011 04:16 PM, Stephen Mather wrote:
>
> Hi All,
>      I'm using gdal_translate (version 1.6.3 on Ubuntu) with a scale factor
> to stretch float values to 16-bit integer values.  It works fine with tif
> output, but with PNG it stretches the values to 8-bit:
>
> gdal_translate -of PNG -scale 0 1550 0 65535 N2140615.txt N2140615.png
>
>
> Try gdal_translate -of PNG -ot UInt16 -scale 0 1550 0 65535 N2140615.txt
> N2140615.png
>
>
> Is this a known issue and/or has it been fixed with more recent versions?
> I know I had trouble with this with an MS4W release as well.
>
> Thanks,
> Steve
>
>
> _______________________________________________
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>
>  -marius
>
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