- Modifications to compile ImageMagick

2013-02-19 18:37:48 +01:00 · 2013-02-19 18:37:48 +01:00 · 83522c16c3
commit 83522c16c3
parent 615ec83706
3442 changed files with 57 additions and 412926 deletions
--- a/ImageMagick/www/source/wand/sigmoidal-contrast.c
+++ b/ImageMagick/www/source/wand/sigmoidal-contrast.c
@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <wand/MagickWand.h>
+
+static MagickBooleanType SigmoidalContrast(WandView *contrast_view,
+  const ssize_t y,const int id,void *context)
+{
+#define QuantumScale  ((MagickRealType) 1.0/(MagickRealType) QuantumRange)
+#define SigmoidalContrast(x) \
+  (QuantumRange*(1.0/(1+exp(10.0*(0.5-QuantumScale*x)))-0.0066928509)*1.0092503)
+
+  RectangleInfo
+    extent;
+
+  MagickPixelPacket
+    pixel;
+
+  PixelWand
+    **pixels;
+
+  register ssize_t
+    x;
+
+  extent=GetWandViewExtent(contrast_view);
+  pixels=GetWandViewPixels(contrast_view);
+  for (x=0; x < (ssize_t) (extent.width-extent.x); x++)
+  {
+    PixelGetMagickColor(pixels[x],&pixel);
+    pixel.red=SigmoidalContrast(pixel.red);
+    pixel.green=SigmoidalContrast(pixel.green);
+    pixel.blue=SigmoidalContrast(pixel.blue);
+    pixel.index=SigmoidalContrast(pixel.index);
+    PixelSetMagickColor(pixels[x],&pixel);
+  }
+  return(MagickTrue);
+}
+
+int main(int argc,char **argv)
+{
+#define ThrowViewException(view) \
+{ \
+  description=GetWandViewException(view,&severity); \
+  (void) fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description); \
+  description=(char *) MagickRelinquishMemory(description); \
+  exit(-1); \
+}
+#define ThrowWandException(wand) \
+{ \
+  description=MagickGetException(wand,&severity); \
+  (void) fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description); \
+  description=(char *) MagickRelinquishMemory(description); \
+  exit(-1); \
+}
+
+  char
+    *description;
+
+  ExceptionType
+    severity;
+
+  MagickBooleanType
+    status;
+
+  MagickPixelPacket
+    pixel;
+
+  MagickWand
+    *contrast_wand;
+
+  WandView
+    *contrast_view;
+
+  if (argc != 3)
+    {
+      (void) fprintf(stdout,"Usage: %s image sigmoidal-image\n",argv[0]);
+      exit(0);
+    }
+  /*
+    Read an image.
+  */
+  MagickWandGenesis();
+  contrast_wand=NewMagickWand();
+  status=MagickReadImage(contrast_wand,argv[1]);
+  if (status == MagickFalse)
+    ThrowWandException(contrast_wand);
+  /*
+    Sigmoidal non-linearity contrast control.
+  */
+  contrast_view=NewWandView(contrast_wand);
+  if (contrast_view == (WandView *) NULL)
+    ThrowWandException(contrast_wand);
+  status=UpdateWandViewIterator(contrast_view,SigmoidalContrast,(void *) NULL);
+  if (status == MagickFalse)
+    ThrowWandException(contrast_wand);
+  contrast_view=DestroyWandView(contrast_view);
+  /*
+    Write the image then destroy it.
+  */
+  status=MagickWriteImages(contrast_wand,argv[2],MagickTrue);
+  if (status == MagickFalse)
+    ThrowWandException(contrast_wand);
+  contrast_wand=DestroyMagickWand(contrast_wand);
+  MagickWandTerminus();
+  return(0);
+}