diff --git a/ImageMagick-filter.t.patch b/ImageMagick-filter.t.patch
index 6cc101c..fb35f94 100644
--- a/ImageMagick-filter.t.patch
+++ b/ImageMagick-filter.t.patch
@@ -1,22 +1,49 @@
-Index: ImageMagick-7.0.8-9/PerlMagick/t/filter.t
-===================================================================
---- ImageMagick-7.0.8-9.orig/PerlMagick/t/filter.t	2018-08-06 00:27:10.000000000 +0200
-+++ ImageMagick-7.0.8-9/PerlMagick/t/filter.t	2018-08-06 15:58:12.191924568 +0200
-@@ -189,7 +189,7 @@ testFilterCompare('input.miff',  q//, 'r
- testFilterCompare('input.miff',  q//, 'reference/filter/Solarize.miff', 'Solarize', q//, 0.0, 0.0);
- ++$test;
+diff --git a/MagickCore/fx.c b/MagickCore/fx.c
+index 75b2b98c16..3bdc468273 100644
+--- a/MagickCore/fx.c
++++ b/MagickCore/fx.c
+@@ -3394,7 +3394,7 @@ MagickExport Image *ImplodeImage(const Image *image,const double amount,
+       delta.x=scale.x*(double) (x-center.x);
+       distance=delta.x*delta.x+delta.y*delta.y;
+       if ((distance >= (radius*radius)) ||
+-          (GetPixelWriteMask(canvas_image,p) > (QuantumRange/2)))
++          (GetPixelWriteMask(canvas_image,p) <= (QuantumRange/2)))
+         for (i=0; i < (ssize_t) GetPixelChannels(canvas_image); i++)
+         {
+           PixelChannel channel = GetPixelChannelChannel(canvas_image,i);
+@@ -5227,7 +5227,7 @@ MagickExport Image *SwirlImage(const Image *image,double degrees,
+       delta.x=scale.x*(double) (x-center.x);
+       distance=delta.x*delta.x+delta.y*delta.y;
+       if ((distance >= (radius*radius)) ||
+-          (GetPixelWriteMask(canvas_image,p) > (QuantumRange/2)))
++          (GetPixelWriteMask(canvas_image,p) <= (QuantumRange/2)))
+         {
+           register ssize_t
+             i;
+@@ -5729,7 +5729,7 @@ MagickExport Image *WaveImage(const Image *image,const double amplitude,
+       }
+     for (x=0; x < (ssize_t) wave_image->columns; x++)
+     {
+-      if (GetPixelWriteMask(image,p) > (QuantumRange/2))
++      if (GetPixelWriteMask(image,p) <= (QuantumRange/2))
+         {
+           register ssize_t
+             i;
+diff --git a/MagickCore/image.c b/MagickCore/image.c
+index a74ba1118c..310eb535cc 100644
+--- a/MagickCore/image.c
++++ b/MagickCore/image.c
+@@ -3374,10 +3374,10 @@ MagickExport MagickBooleanType SetImageRegionMask(Image *image,
+       Quantum
+         pixel;
  
--testFilterCompare('input.miff',  q//, 'reference/filter/Swirl.miff', 'Swirl', q/90/, 0.0, 0.0);
-+testFilterCompare('input.miff',  q//, 'reference/filter/Swirl.miff', 'Swirl', q/90/, 0.01, 0.8);
- ++$test;
- 
- testFilterCompare('input.miff',  q//, 'reference/filter/Threshold.miff', 'Threshold', q/90%/, 0.0, 0.0);
-@@ -201,7 +201,7 @@ testFilterCompare('input.miff',  q//, 'r
- testFilterCompare('input.miff',  q//, 'reference/filter/UnsharpMask.miff', 'UnsharpMask', q/'5x2+1'/, 0.004, 0.4);
- ++$test;
- 
--testFilterCompare('input.miff',  q//, 'reference/filter/Wave.miff', 'Wave', q/'25x150'/, 0.0, 0.0);
-+testFilterCompare('input.miff',  q//, 'reference/filter/Wave.miff', 'Wave', q/'25x150'/, 0.4, 1.0);
- ++$test;
- 
- 1;
+-      pixel=QuantumRange;
++      pixel=(Quantum) 0;
+       if (((x >= region->x) && (x < (region->x+(ssize_t) region->width))) &&
+           ((y >= region->y) && (y < (region->y+(ssize_t) region->height))))
+-        pixel=(Quantum) 0;
++        pixel=QuantumRange;
+       switch (type)
+       {
+         case ReadPixelMask:
+