diff --git a/examples/prints/README b/examples/prints/README
new file mode 100644
index 00000000..3da3ef36
--- /dev/null
+++ b/examples/prints/README
@@ -0,0 +1,3 @@
+These are example images from NIST and are not copyrighted.
+
+The PNG files have been generated by using the greyscale data as a mask.
\ No newline at end of file
diff --git a/examples/prints/arch.jpg b/examples/prints/arch.jpg
new file mode 100644
index 00000000..b87e285c
Binary files /dev/null and b/examples/prints/arch.jpg differ
diff --git a/examples/prints/arch.png b/examples/prints/arch.png
new file mode 100644
index 00000000..f8c9b4de
Binary files /dev/null and b/examples/prints/arch.png differ
diff --git a/examples/prints/loop-right.jpg b/examples/prints/loop-right.jpg
new file mode 100644
index 00000000..126b90e0
Binary files /dev/null and b/examples/prints/loop-right.jpg differ
diff --git a/examples/prints/loop-right.png b/examples/prints/loop-right.png
new file mode 100644
index 00000000..93177ddd
Binary files /dev/null and b/examples/prints/loop-right.png differ
diff --git a/examples/prints/tented_arch.jpg b/examples/prints/tented_arch.jpg
new file mode 100644
index 00000000..e73f7ccf
Binary files /dev/null and b/examples/prints/tented_arch.jpg differ
diff --git a/examples/prints/tented_arch.png b/examples/prints/tented_arch.png
new file mode 100644
index 00000000..c524a1fc
Binary files /dev/null and b/examples/prints/tented_arch.png differ
diff --git a/examples/prints/whorl.jpg b/examples/prints/whorl.jpg
new file mode 100644
index 00000000..96c79ba3
Binary files /dev/null and b/examples/prints/whorl.jpg differ
diff --git a/examples/prints/whorl.png b/examples/prints/whorl.png
new file mode 100644
index 00000000..9e7e7c4b
Binary files /dev/null and b/examples/prints/whorl.png differ