image->rows=(size_t) (level*cube_size);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
#pragma omp parallel for schedule(static,8) shared(status) \
- IsConcurrent(image->columns,image->rows)
+ dynamic_number_threads(image,image->columns,image->rows,1)
#endif
for (y=0; y < (ssize_t) image->rows; y+=(ssize_t) level)
{