[Qgis-user] Colour ramps - raster file extreme values
b.j.kobben at utwente.nl
b.j.kobben at utwente.nl
Tue Aug 25 14:45:10 PDT 2015
My bad, I think I confuse it with another software or with a plugin. I have very limited internet access at the moment so cantt look into it fro you, sorry...
Barend
On 24-08-15 07:51, "Lester Anderson" <arctica1963 at gmail.com<mailto:arctica1963 at gmail.com>> wrote:
Hello,
There is no histogram stretch option with v2.6 - is this a new option in the later versions?
Lester
On 22 August 2015 at 18:19, <b.j.kobben at utwente.nl<mailto:b.j.kobben at utwente.nl>> wrote:
Look into "histogram stretch", this stretches colour values based on frequency.
Barend
--
Barend Köbben
Senior Lecturer - ITC-University of Twente
PO Box 217, 7500 AE Enschede (Netherlands)
@barendkobben
http://www.itc.nl/geoinformatics
On 21-08-15 17:48, "Lester Anderson" <arctica1963 at gmail.com<mailto:arctica1963 at gmail.com>> wrote:
Hi all,
I was wondering if anyone has advice for dealing with raster files that have a few small areas of extreme highs/lows (eg +200/-150), but the main data are much smaller values (+/- 25)?
Using a linear colour scheme, the extremes make the main areas of interest washed out to a great extent so the subtle features get lost. Couln't see any obvious route in v2.6
A way to adjust the curves, like in image processing or a log scale would be useful.
Cheers
Lester
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20150825/6491c436/attachment.html>
More information about the Qgis-user
mailing list