Re: [Qgis-developer] Feedback for contrast enhancement ... enhancements ?

2016-09-06 Thread Andrew
One note I would add is that the 2-click option does not work with a singleband pseudocolor renderer(neither does the raster toolbar which offers a 1-click stretch). So I think updating the right-click>"Stretch using current extent" to work with singleband pseudocolor would be excellent to

Re: [Qgis-developer] Feedback for contrast enhancement ... enhancements ?

2016-09-02 Thread Mathieu Pellerin
Please don't change the default behavior for 3-band rasters to min/max; while it does make in many scenarios for 1-band rasters (DEM, precipitation value, vegetation index, etc.), this is a terrible default value for most - if not all - satellite imagery products (i.e. Sentinel-2, LANDSAT-{5,7,8},

Re: [Qgis-developer] Feedback for contrast enhancement ... enhancements ?

2016-09-02 Thread Nyall Dawson
On 2 September 2016 at 21:50, G. Allegri wrote: > +1 > > I would also make min/max the default option, because I've has many users > (mostly newcomers) were struggling too find out why some pixels were not > displaying as expected. It was because the statistics weren't

Re: [Qgis-developer] Feedback for contrast enhancement ... enhancements ?

2016-09-02 Thread G. Allegri
+1 I would also make min/max the default option, because I've has many users (mostly newcomers) were struggling too find out why some pixels were not displaying as expected. It was because the statistics weren't including some, few, important pixels. Anyway I know that, generally, cutting the

[Qgis-developer] Feedback for contrast enhancement ... enhancements ?

2016-09-02 Thread Even Rouault
Hi, There has been interest expressed to improve the usability of the contrast enhancement function. Basically there are workflows where you want the min/max values used by contrast enhancement to be updated each time you pan or zoom the canvas. From what I've seen, here's what currently