filter_div        789 ext/gd/libgd/gd.h int gdImageConvolution(gdImagePtr src, float ft[3][3], float filter_div, float offset);
filter_div        230 ext/gd/libgd/gd_filter.c int gdImageConvolution(gdImagePtr src, float filter[3][3], float filter_div, float offset)
filter_div        272 ext/gd/libgd/gd_filter.c 			new_r = (new_r/filter_div)+offset;
filter_div        273 ext/gd/libgd/gd_filter.c 			new_g = (new_g/filter_div)+offset;
filter_div        274 ext/gd/libgd/gd_filter.c 			new_b = (new_b/filter_div)+offset;