downsample         45 apps/local_laplacian/local_laplacian_generator.cpp             gPyramid[j](x, y, k) = downsample(gPyramid[j-1])(x, y, k);
downsample         59 apps/local_laplacian/local_laplacian_generator.cpp             inGPyramid[j](x, y) = downsample(inGPyramid[j-1])(x, y);