image_view=AcquireVirtualCacheView(image,exception);
morphology_view=AcquireAuthenticCacheView(morphology_image,exception);
width=image->columns+kernel->width-1;
- offset.x=0.0;
- offset.y=0.0;
+ offset.x=0;
+ offset.y=0;
switch (method)
{
case ConvolveMorphology:
center=(ssize_t) GetPixelChannels(image)*offset.y;
for (y=0; y < (ssize_t) image->rows; y++)
{
- register ssize_t
- i;
+ double
+ gamma[MaxPixelChannels],
+ pixel[MaxPixelChannels];
- for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
- {
- double
- alpha,
- gamma,
- pixel;
+ PixelChannel
+ channel;
- PixelChannel
- channel;
+ PixelTrait
+ morphology_traits,
+ traits;
- PixelTrait
- morphology_traits,
- traits;
+ register const MagickRealType
+ *restrict k;
- register const MagickRealType
- *restrict k;
+ register const Quantum
+ *restrict pixels;
- register const Quantum
- *restrict pixels;
+ register ssize_t
+ i;
+
+ size_t
+ count[MaxPixelChannels];
+
+ ssize_t
+ v;
+ for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
+ {
+ pixel[i]=bias;
+ gamma[i]=0.0;
+ count[i]=0;
+ }
+ pixels=p;
+ k=(&kernel->values[kernel->width*kernel->height-1]);
+ for (v=0; v < (ssize_t) kernel->height; v++)
+ {
register ssize_t
u;
- size_t
- count;
-
- ssize_t
- v;
+ for (u=0; u < (ssize_t) kernel->width; u++)
+ {
+ if (IfNaN(*k) == MagickFalse)
+ {
+ double
+ alpha;
+ alpha=(double) (QuantumScale*GetPixelAlpha(image,pixels));
+ for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
+ {
+ channel=GetPixelChannelChannel(image,i);
+ traits=GetPixelChannelTraits(image,channel);
+ if ((traits & BlendPixelTrait) == 0)
+ {
+ pixel[i]+=(*k)*pixels[i];
+ gamma[i]=1.0;
+ }
+ else
+ {
+ pixel[i]+=alpha*(*k)*pixels[i];
+ gamma[i]+=alpha*(*k);
+ }
+ count[i]++;
+ }
+ }
+ k--;
+ pixels+=GetPixelChannels(image);
+ }
+ }
+ for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
+ {
channel=GetPixelChannelChannel(image,i);
traits=GetPixelChannelTraits(image,channel);
morphology_traits=GetPixelChannelTraits(morphology_image,channel);
SetPixelChannel(morphology_image,channel,p[center+i],q);
continue;
}
- k=(&kernel->values[kernel->width*kernel->height-1]);
- pixels=p;
- pixel=bias;
- if ((morphology_traits & BlendPixelTrait) == 0)
- {
- /*
- No alpha blending.
- */
- for (v=0; v < (ssize_t) kernel->height; v++)
- {
- for (u=0; u < (ssize_t) kernel->width; u++)
- {
- if (IfNaN(*k) == MagickFalse)
- pixel+=(*k)*pixels[i];
- k--;
- pixels+=GetPixelChannels(image);
- }
- }
- if (fabs(pixel-p[center+i]) > MagickEpsilon)
- changes[id]++;
- SetPixelChannel(morphology_image,channel,ClampToQuantum(pixel),
- q);
- continue;
- }
- /*
- Alpha blending.
- */
- gamma=0.0;
- count=0;
- for (v=0; v < (ssize_t) kernel->height; v++)
- {
- for (u=0; u < (ssize_t) kernel->width; u++)
- {
- if (IfNaN(*k) == MagickFalse)
- {
- alpha=(double) (QuantumScale*GetPixelAlpha(image,pixels));
- pixel+=(*k)*alpha*pixels[i];
- gamma+=(*k)*alpha;
- count++;
- }
- k--;
- pixels+=GetPixelChannels(image);
- }
- }
- if (fabs(pixel-p[center+i]) > MagickEpsilon)
+ if (fabs(pixel[i]-p[center+i]) > MagickEpsilon)
changes[id]++;
- gamma=PerceptibleReciprocal(gamma);
- if (count != 0)
- gamma*=(double) kernel->height*kernel->width/count;
- SetPixelChannel(morphology_image,channel,ClampToQuantum(gamma*
- pixel),q);
+ gamma[i]=PerceptibleReciprocal(gamma[i]);
+ if (count[i] != 0)
+ gamma[i]*=(double) kernel->height*kernel->width/count[i];
+ SetPixelChannel(morphology_image,channel,ClampToQuantum(gamma[i]*
+ pixel[i]),q);
}
p+=GetPixelChannels(image);
q+=GetPixelChannels(morphology_image);
* This is done BEFORE the ShowKernelInfo() function is called so that
* users can see the results of the 'option:convolve:scale' option.
*/
- if ( method == ConvolveMorphology || method == CorrelateMorphology ) {
+ if ((method == ConvolveMorphology) || (method == CorrelateMorphology)) {
const char
*artifact;