[gegl] unsharp-mask: raise max radius to max of gaussian-blur

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 21f7d15ae957edb08aca61b214c08300198b9ab3
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Oct 15 19:55:44 2018 +0200

    unsharp-mask: raise max radius to max of gaussian-blur
    
    Very large radiuses for unsharp mask are useful as a crude tonemapper,
    maxing out the possible value, this doesn't change the default ui range,
    only the max permitted value.

 operations/common/unsharp-mask.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/operations/common/unsharp-mask.c b/operations/common/unsharp-mask.c
index de0eb339f..7ead881bd 100644
--- a/operations/common/unsharp-mask.c
+++ b/operations/common/unsharp-mask.c
@@ -23,7 +23,7 @@
 
 property_double (std_dev, _("Radius"), 3.0)
     description(_("Expressed as standard deviation, in pixels"))
-    value_range (0.0, 300)
+    value_range (0.0, 1500)
     ui_range    (0.0, 40.0)
     ui_gamma    (3.0)
     ui_meta     ("unit", "pixel-distance")