Hi Laurent,
This is possible in QGIS 3, as it has the local contrast (stretch and
clip at updated current extent) as a styling option of a raster layer.
I know that this may not be the answer you want, but you can already
install and use QGIS 3 in parallel with 2.18 - if you just use QGIS 3 to
generate the atlas.
Greetings,
Andreas
On 2017-10-12 22:07, image wrote:
> Good evening,
>
> I'm working with qgis 2.18(windows) and the usefull atlas tools. My covering
> layer is a polygon layer (20 features). My atlas template is composed by 4
> map elements representing different images raster (3 multibands). I use the
> option proposed in the tab called "object property" to lock the layer and
> the style of the layer (lock layers / lock style for layers).For each
> raster, I want to be able to automatically apply and set the raster style
> and enhance the contrast "local histogram stretch".
>
> I join a screen shot reprensenting my atlas template.
>
> <http://osgeo-org.1560.x6.nabble.com/file/t365144/SS_atals_raster_style.jpg>
>
> Could you throw light for me ? is there a way to automatically assign a
> contrast stretch ("local histogram stretch") for all my map elements and for
> my 20 atlas sheet?
>
> In advance, thank you for your help.
>
> Kind regards.
>
> --
> Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html
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