[Qgis-user] QGIS Master and Rasters to grayscale

[Etienne Tourigny]

DId you click on "Load" Button?

On Tue, Jun 19, 2012 at 10:22 AM, James Stott
<James.Stott at npaconsult.co.uk> wrote:
>> You can still do that by selecting "singleband gray", and choose the default contrast enhancement in the options.
>
> This just turns the raster into 1 gray colour: 127, 127, 127
>
>> can you share a bit sample of your raster?
>
> Technically I don’t think I supposed to share the data as it is Ordnance Survey data.
>
> I have included the metadata below if this helps:
>
> Driver:
> GDAL provider
> VRT
> Virtual Raster
> Dataset Description
> N:\Projects\10499 BP\Reference\Base Mapping\Raster\10000\OS 10000.vrt
> Band 1
> STATISTICS_MAXIMUM=9
> STATISTICS_MEAN=3.2746921074487
> STATISTICS_MINIMUM=0
> STATISTICS_STDDEV=3.9133672791329
> Dimensions:
> X: 39370 Y: 31496 Bands: 1
> Origin:
> 385000,95000
> Pixel Size:
> 0.635001,-0.635001
> No Data Value
> -32768
> Data Type:
> GDT_Byte - Eight bit unsigned integer
> Pyramid overviews:
> Layer Spatial Reference System:
> +proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000 +ellps=airy +towgs84=375,-111,431,0,0,0,0 +units=m +no_defs
> Layer Extent (layer original source projection):
> 385000.0000000000000000,75000.0000000000000000 : 410000.0000000000000000,95000.0000000000000000
> Band
> Band 1
> Band No
> 1
> No Stats
> No stats collected yet
>
>
> James Stott BSc (Hons) MSc | Senior Professional
> Nicholas Pearson Associates | 30 Brock Street | Bath | BA1 2LN
> T: 01225 445548 | M: -
> http://www.npaconsult.co.uk/
>
> http://www.npaconsult.co.uk/http://www.npaconsult.co.uk/about-news.asp
>
> From: qgis-user-bounces at lists.osgeo.org [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of Salvatore Larosa
> Sent: 19 June 2012 13:02
> To: qgis-user at lists.osgeo.org
> Subject: Re: [Qgis-user] QGIS Master and Rasters to grayscale
>
> Il giorno mar, 19/06/2012 alle 12.42 +0100, James Stott ha scritto:
>> This does make what was a very simple thing to do in 1.8 more time
>> consuming in 1.9 doesn’t it? All I want to do is just turn it
>> grayscale for display purposes. In 1.8, all I do is select grayscale
>> from the colormap drop down and push OK and QGIS does it for me. Am I
>> missing something?
>
> Hi James,
> can you share a bit sample of your raster?
>
> Regards,
>
> -SL
>
>
> --
> Salvatore Larosa
> linkedIn: http://linkedin.com/in/larosasalvatore
> twitter: @lrssvt
> skype: s.larosa
> IRC: lrssvt on freenode
>
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