INDEX_DX           55 libavfilter/vf_colorconstancy.c #define INDEX_NORM INDEX_DX
INDEX_DX          330 libavfilter/vf_colorconstancy.c         const double *dx = td->data[INDEX_DX][plane];
INDEX_DX          402 libavfilter/vf_colorconstancy.c         get_deriv(ctx, td, 0, DIR_Y, INDEX_TEMP, INDEX_DX,   width , nb_threads);
INDEX_DX          410 libavfilter/vf_colorconstancy.c         get_deriv(ctx, td, 0, DIR_Y, INDEX_TEMP, INDEX_DX,   width , nb_threads);