diff --git a/images/image-0.png b/images/image-0.png
index 86c598f41..c2f92ab51 100644
Binary files a/images/image-0.png and b/images/image-0.png differ
diff --git a/images/image-1.png b/images/image-1.png
index 64ccf0d6e..8cf6bf5f6 100644
Binary files a/images/image-1.png and b/images/image-1.png differ
diff --git a/images/image-2.png b/images/image-2.png
index 5ffc6de84..ee1ee4810 100644
Binary files a/images/image-2.png and b/images/image-2.png differ
diff --git a/images/image-3.png b/images/image-3.png
index e09efdd47..5264c6550 100644
Binary files a/images/image-3.png and b/images/image-3.png differ
diff --git a/images/image-4.png b/images/image-4.png
index 0beed9fec..b695d62cb 100644
Binary files a/images/image-4.png and b/images/image-4.png differ
diff --git a/images/image-5.png b/images/image-5.png
index a09e61dae..a7ec324e6 100644
Binary files a/images/image-5.png and b/images/image-5.png differ
diff --git a/images/image-6.png b/images/image-6.png
index b229adc46..385f139df 100644
Binary files a/images/image-6.png and b/images/image-6.png differ
diff --git a/plugins/bw.js b/plugins/bw.js
index 4e49ed105..a2159862f 100644
--- a/plugins/bw.js
+++ b/plugins/bw.js
@@ -21,14 +21,19 @@ BOOMR.plugins = BOOMR.plugins || {};
 // bytes respectively
 // See https://spreadsheets.google.com/ccc?key=0AplxPyCzmQi6dDRBN2JEd190N1hhV1N5cHQtUVdBMUE&hl=en_GB
 // for a spreadsheet with the details
+//
+// The images were generated with ImageMagic, using random uncompressed data. 
+// As input data (image-3.bin) I used the original images that were encrypted using AES256.
+// The IM command used was : convert -size 618x618 -depth 8 gray:image-3.bin image-3.png
+// Vary the image dimensions to change the filesize. The image dimensions are more or less the square of the desired filesize.
 images=[
-	{ name: "image-0.png", size: 11483, timeout: 1400 },
-	{ name: "image-1.png", size: 40658, timeout: 1200 },
-	{ name: "image-2.png", size: 164897, timeout: 1300 },
-	{ name: "image-3.png", size: 381756, timeout: 1500 },
-	{ name: "image-4.png", size: 1234664, timeout: 1200 },
-	{ name: "image-5.png", size: 4509613, timeout: 1200 },
-	{ name: "image-6.png", size: 9084559, timeout: 1200 }
+	{ name: "image-0.png", size: 11773, timeout: 1400 },
+	{ name: "image-1.png", size: 40836, timeout: 1200 },
+	{ name: "image-2.png", size: 165544, timeout: 1300 },
+	{ name: "image-3.png", size: 382946, timeout: 1500 },
+	{ name: "image-4.png", size: 1236278, timeout: 1200 },
+	{ name: "image-5.png", size: 4511798, timeout: 1200 },
+	{ name: "image-6.png", size: 9092136, timeout: 1200 }
 ];
 
 images.end = images.length;