diff --git a/src/blur.rs b/src/blur.rs
index cfa1351..fdfcdc5 100644
--- a/src/blur.rs
+++ b/src/blur.rs
@@ -444,115 +444,116 @@ mod tests {
             .collect::<Vec<_>>();
         let mut blur = Blur::new(width);
 
-        blur.box_blur(
+        blur.run(
             &mut src,
             &mut vec![0.0; width * height],
             width,
             height,
-            1,
+            2 as f32,
             0.1,
         );
+
         let sol = vec![
-            0.020623347,
-            0.031088883,
-            0.03575954,
-            0.04622508,
-            0.050895732,
-            0.06136127,
-            0.066031925,
-            0.06618575,
-            0.055720214,
-            0.051049553,
-            0.038047146,
-            0.05850169,
-            0.067484796,
-            0.087939344,
-            0.09692245,
-            0.11737699,
-            0.1263601,
-            0.12663625,
-            0.1061817,
-            0.097198606,
-            0.040142592,
-            0.06103797,
-            0.07035155,
-            0.091246925,
-            0.1005605,
-            0.12145588,
-            0.13076945,
-            0.13107346,
-            0.11017809,
-            0.100864515,
-            0.057566393,
-            0.088450775,
-            0.102076806,
-            0.1329612,
-            0.14658722,
-            0.1774716,
-            0.19109762,
-            0.19152397,
-            0.16063958,
-            0.14701356,
-            0.05966184,
-            0.09098706,
-            0.10494356,
-            0.13626878,
-            0.15022527,
-            0.18155049,
-            0.19550698,
-            0.19596118,
-            0.16463596,
-            0.15067947,
-            0.077085644,
-            0.118399866,
-            0.13666882,
-            0.17798306,
-            0.19625197,
-            0.2375662,
-            0.25583515,
-            0.2564117,
-            0.21509746,
-            0.19682851,
-            0.0791811,
-            0.12093615,
-            0.13953556,
-            0.18129064,
-            0.19989002,
-            0.24164508,
-            0.26024452,
-            0.2608489,
-            0.21909383,
-            0.20049442,
-            0.07922324,
-            0.12098102,
-            0.13958256,
-            0.18134035,
-            0.19994187,
-            0.24169965,
-            0.2603012,
-            0.26090586,
-            0.21914804,
-            0.20054653,
-            0.06179944,
-            0.09356822,
-            0.1078573,
-            0.13962609,
-            0.15391515,
-            0.18568392,
-            0.19997302,
-            0.20045534,
-            0.16868654,
-            0.15439747,
-            0.059703995,
-            0.09103194,
-            0.10499055,
-            0.1363185,
-            0.15027711,
-            0.18160504,
-            0.19556366,
-            0.19601813,
-            0.16469017,
-            0.15073158,
+            0.050528992,
+            0.044103604,
+            0.038919702,
+            0.032494307,
+            0.027310405,
+            0.020885015,
+            0.023104476,
+            0.020885015,
+            0.023104476,
+            0.028288381,
+            0.043704934,
+            0.038152207,
+            0.033674292,
+            0.028121557,
+            0.023643643,
+            0.018090911,
+            0.020009955,
+            0.018090911,
+            0.020009955,
+            0.024487872,
+            0.03968891,
+            0.03461781,
+            0.03053501,
+            0.025463907,
+            0.021381106,
+            0.016310005,
+            0.018066125,
+            0.016310005,
+            0.018066125,
+            0.022148928,
+            0.032864854,
+            0.028666414,
+            0.025289603,
+            0.021091158,
+            0.017714344,
+            0.013515903,
+            0.014971604,
+            0.013515901,
+            0.014971604,
+            0.01834842,
+            0.02884883,
+            0.025132021,
+            0.022150321,
+            0.018433508,
+            0.015451807,
+            0.011734996,
+            0.013027772,
+            0.011734993,
+            0.013027772,
+            0.016009476,
+            0.022024775,
+            0.019180624,
+            0.016904911,
+            0.014060758,
+            0.011785044,
+            0.008940893,
+            0.009933252,
+            0.00894089,
+            0.009933252,
+            0.012208968,
+            0.02513346,
+            0.021875666,
+            0.019268055,
+            0.016010256,
+            0.013402643,
+            0.010144847,
+            0.011281048,
+            0.010144845,
+            0.011281048,
+            0.013888664,
+            0.022024775,
+            0.019180622,
+            0.016904911,
+            0.014060758,
+            0.011785044,
+            0.008940893,
+            0.009933252,
+            0.00894089,
+            0.009933252,
+            0.012208967,
+            0.02513346,
+            0.021875666,
+            0.019268055,
+            0.016010256,
+            0.013402643,
+            0.010144847,
+            0.011281048,
+            0.010144845,
+            0.011281048,
+            0.013888664,
+            0.029149484,
+            0.02541006,
+            0.022407336,
+            0.018667907,
+            0.015665181,
+            0.011925754,
+            0.013224879,
+            0.011925753,
+            0.013224879,
+            0.016227607,
         ];
         for (v1, v2) in src.iter().zip(sol) {
             assert!((v1 - v2).abs() < 1e-6, "run failure {} vs {}", v1, v2);