You guessed it -- more perlin noise rebaselines.

expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json

Index: expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json
diff --git a/expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json b/expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json
index ee579805aa8cffc8f05c489be13768293272cd9c..2c472ea323ea10eb2bf0260bc3f22bae926a37bd 100644
--- a/expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json
+++ b/expectations/gm/Test-Win7-ShuttleA-HD2000-x86_64-Debug/expected-results.json
@@ -8077,17 +8077,19 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          4781711442727351551
+          11178354341533563746
         ]
-      ]
+      ], 
+      "reviewed-by-human": true
     }, 
     "imagefiltersscaled_gpu.png": {
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          16236721268324357263
+          4596576699457741273
         ]
-      ]
+      ], 
+      "reviewed-by-human": true
     }, 
     "imagefiltersscaled_pdf-poppler.png": {
       "allowed-digests": [
@@ -9544,7 +9546,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          1098763191610264229
+          14413015027460366330
         ]
       ], 
       "reviewed-by-human": true
@@ -9553,7 +9555,7 @@
       "allowed-digests": [
         [
           "bitmap-64bitMD5", 
-          13918912246429055687
+          17735883773617287292
         ]
       ], 
       "ignore-failure": false,