[gdal-dev] gdalenhance -config file how you do linear interpolation of the colors?

[Nikolaos Hatzopoulos]

How you define the min max from this documentation:
http://www.gdal.org/gdal_vrttut.html

--Nikos

On Thu, Feb 9, 2012 at 10:59 PM, Chaitanya kumar CH
<chaitanya.ch at gmail.com>wrote:

> Nikolaos,
>
> The gdalenhance utility is not really recommended. I don't know the config
> file format.
>
> GDAL's VRT driver[1] supports a look-up-table that works with linear
> interpolation. In it, you specify pairs of corresponding values in source
> and destination rasters. The intermediate source values are interpolated
> linearly.
>
> [1]: http://www.gdal.org/gdal_vrttut.html
>
> On Fri, Feb 10, 2012 at 6:31 AM, Nikolaos Hatzopoulos <nhatzop at gmail.com>wrote:
>
>> so I have created a config file for gdalenhance
>>
>> color.config:
>>
>> 1:Band -100:ScaleMin 11000:ScaleMax 0:3.667:30 30:1.667:60 60:0.833:120
>> 120:0.429:190 190:0.231:255
>> 2:Band -100:ScaleMin 11000:ScaleMax 0:3.667:30 30:1.667:60 60:0.833:120
>> 120:0.429:190 190:0.231:255
>> 3:Band -100:ScaleMin 11000:ScaleMax 0:3.667:30 30:1.667:60 60:0.833:120
>> 120:0.429:190 190:0.231:255
>>
>> is it valid..? is it going to make a linear interpolation of the colors???
>>
>>
>>
>> --Nikos
>>
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>> gdal-dev at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
> +91-9494447584
> 17.2416N 80.1426E
>
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