@@ -433,7 +433,7 @@ class MaskedImageParamMixin(DataSet):
433433 """Mixin for masked image parameters."""
434434
435435 g_mask = BeginGroup (_ ("Mask" ))
436- filling_value = FloatItem (_ ("Filling value" ), default = 0.0 )
436+ filling_value = FloatItem (_ ("Filling value" ))
437437 show_mask = BoolItem (_ ("Show image mask" ), default = False )
438438 alpha_masked = FloatItem (_ ("Masked area alpha" ), default = 0.7 , min = 0 , max = 1 )
439439 alpha_unmasked = FloatItem (_ ("Unmasked area alpha" ), default = 0.0 , min = 0 , max = 1 )
@@ -501,10 +501,10 @@ class ImageFilterParam(BaseImageParam):
501501
502502 label = StringItem (_ ("Title" ), default = _ ("Filter" ))
503503 g1 = BeginGroup (_ ("Bounds" ))
504- xmin = FloatItem (_ ("x|min" ), default = 0.0 )
505- xmax = FloatItem (_ ("x|max" ), default = 1.0 )
506- ymin = FloatItem (_ ("y|min" ), default = 0.0 )
507- ymax = FloatItem (_ ("y|max" ), default = 1.0 )
504+ xmin = FloatItem (_ ("x|min" ))
505+ xmax = FloatItem (_ ("x|max" ))
506+ ymin = FloatItem (_ ("y|min" ))
507+ ymax = FloatItem (_ ("y|max" ))
508508 _g1 = EndGroup ("sub-group" )
509509 use_source_cmap = BoolItem (
510510 _ ("Use image colormap and level" ), _ ("Color map" ), default = True
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