Cross Reference: /external/ImageMagick/MagickCore/feature.c

Lines Matching defs:edge_image
159 static MagickBooleanType TraceEdges(Image *edge_image,CacheView *edge_view,
207         if (IsAuthenticPixel(edge_image,edge.x+u,edge.y+v) == MagickFalse)
219         if ((GetPixelIntensity(edge_image,q) == 0.0) &&
261     *edge_image;
292   edge_image=ConvolveImage(image, kernel_info, exception);
294   if (edge_image == (Image *) NULL)
296   if (SetImageColorspace(edge_image,GRAYColorspace,exception) == MagickFalse)
298       edge_image=DestroyImage(edge_image);
301   (void) SetImageAlphaChannel(edge_image,OffAlphaChannel,exception);
305   canny_cache=AcquireMatrixInfo(edge_image->columns,edge_image->rows,
309       edge_image=DestroyImage(edge_image);
313   edge_view=AcquireVirtualCacheView(edge_image,exception);
316     magick_threads(edge_image,edge_image,edge_image->rows,1)
318   for (y=0; y < (ssize_t) edge_image->rows; y++)
328     p=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns+1,2,
335     for (x=0; x < (ssize_t) edge_image->columns; x++)
376           intensity=GetPixelIntensity(edge_image,kernel_pixels+u);
380         kernel_pixels+=edge_image->columns+1;
413       p+=GetPixelChannels(edge_image);
425   edge_view=AcquireAuthenticCacheView(edge_image,exception);
428     magick_threads(edge_image,edge_image,edge_image->rows,1)
430   for (y=0; y < (ssize_t) edge_image->rows; y++)
440     q=GetCacheViewAuthenticPixels(edge_view,0,y,edge_image->columns,1,
447     for (x=0; x < (ssize_t) edge_image->columns; x++)
510       q+=GetPixelChannels(edge_image);
524   edge_view=AcquireAuthenticCacheView(edge_image,exception);
525   for (y=0; y < (ssize_t) edge_image->rows; y++)
532     for (x=0; x < (ssize_t) edge_image->columns; x++)
549       if ((GetPixelIntensity(edge_image,p) == 0.0) &&
551         status=TraceEdges(edge_image,edge_view,canny_cache,x,y,lower_threshold,
573   return(edge_image);