3423     *linear_image,  in ShadeImage()  local
3447   linear_image=CloneImage(image,0,0,MagickTrue,exception);  in ShadeImage()
3449   if ((linear_image == (Image *) NULL) || (shade_image == (Image *) NULL))  in ShadeImage()
3451       if (linear_image != (Image *) NULL)  in ShadeImage()
3452         linear_image=DestroyImage(linear_image);  in ShadeImage()
3459       linear_image=DestroyImage(linear_image);  in ShadeImage()
3476   image_view=AcquireVirtualCacheView(linear_image,exception);  in ShadeImage()
3480     magick_number_threads(linear_image,shade_image,linear_image->rows,1)  in ShadeImage()
3482   for (y=0; y < (ssize_t) linear_image->rows; y++)  in ShadeImage()
3506     p=GetCacheViewVirtualPixels(image_view,-1,y-1,linear_image->columns+2,3,  in ShadeImage()
3519     for (x=0; x < (ssize_t) linear_image->columns; x++)  in ShadeImage()
3527       pre=p+GetPixelChannels(linear_image);  in ShadeImage()
3528       center=pre+(linear_image->columns+2)*GetPixelChannels(linear_image);  in ShadeImage()
3529       post=center+(linear_image->columns+2)*GetPixelChannels(linear_image);  in ShadeImage()
3531         GetShadeIntensity(linear_image,pre-GetPixelChannels(linear_image))+  in ShadeImage()
3532         GetShadeIntensity(linear_image,center-GetPixelChannels(linear_image))+  in ShadeImage()
3533         GetShadeIntensity(linear_image,post-GetPixelChannels(linear_image))-  in ShadeImage()
3534         GetShadeIntensity(linear_image,pre+GetPixelChannels(linear_image))-  in ShadeImage()
3535         GetShadeIntensity(linear_image,center+GetPixelChannels(linear_image))-  in ShadeImage()
3536         GetShadeIntensity(linear_image,post+GetPixelChannels(linear_image)));  in ShadeImage()
3538         GetShadeIntensity(linear_image,post-GetPixelChannels(linear_image))+  in ShadeImage()
3539         GetShadeIntensity(linear_image,post)+  in ShadeImage()
3540         GetShadeIntensity(linear_image,post+GetPixelChannels(linear_image))-  in ShadeImage()
3541         GetShadeIntensity(linear_image,pre-GetPixelChannels(linear_image))-  in ShadeImage()
3542         GetShadeIntensity(linear_image,pre)-  in ShadeImage()
3543         GetShadeIntensity(linear_image,pre+GetPixelChannels(linear_image)));  in ShadeImage()
3559       for (i=0; i < (ssize_t) GetPixelChannels(linear_image); i++)  in ShadeImage()
3568         channel=GetPixelChannelChannel(linear_image,i);  in ShadeImage()
3569         traits=GetPixelChannelTraits(linear_image,channel);  in ShadeImage()
3592       p+=GetPixelChannels(linear_image);  in ShadeImage()
3613   linear_image=DestroyImage(linear_image);  in ShadeImage()