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snohalo1 now clips blur values to useable range

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This commit is contained in:
Nicolas Robidoux 2009-03-31 14:51:22 +00:00
parent c588ab145d
commit 7d182f3f85
1 changed files with 9 additions and 2 deletions
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11
libsrc/resample/snohalo1.cpp
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@ -533,6 +533,13 @@ vips_interpolate_snohalo1_interpolate( VipsInterpolate* restrict interpolate,
*/
const PEL* restrict p = (PEL *) IM_REGION_ADDR( in, ix, iy );
/*
* Restrict blur parameter to [0,1]:
*/
const double actual_blur = snohalo1->blur;
const double blur =
( actual_blur >= 0. ? ( actual_blur <= 1. ? actual_blur : 1. ) : 0. );
/*
* Double bands for complex images:
*/
@ -544,7 +551,7 @@ vips_interpolate_snohalo1_interpolate( VipsInterpolate* restrict interpolate,
p, \
bands, \
lskip, \
snohalo1->blur, \
blur, \
relative_x, \
relative_y );
@ -616,7 +623,7 @@ vips_interpolate_snohalo1_class_init( VipsInterpolateSnohalo1Class *klass )
pspec =
g_param_spec_double( "blur",
_( "Blur" ),
_( "Amount of diagonal straightening blur" ),
_( "Antialiasing blur amount: 0. = none, 1. = max" ),
0, 4, 1,
(GParamFlags) G_PARAM_READWRITE );
g_object_class_install_property( gobject_class,