diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..8206e46
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+*.jpg diff=image
diff --git a/README.md b/README.md
index 828bda6..19d875a 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ $ diff-image anImageThatHasChanged1.jpg anImageThatHasChanged2.jpg
 # The same as above, only using files on disk not git differences.
 ```
 
-![Screenshot](example-comparison.png?raw=true)
+![Screenshot](./images/example-comparison.png?raw=true)
 
 
 Installation
@@ -91,6 +91,17 @@ It will tell you what it's done, so it should look something like this:
 + git config --global diff.image.command '~/git-diff-image/git_diff_image'
 ```
 
+Try without installation
+------------------------
+
+```
+git config diff.image.command $(realpath diff-image)
+cd images
+make earth_with_label.jpg
+cp earth_with_label.jpg earth.jpg
+git diff earth.jpg
+```
+
 Git LFS
 -------
 
diff --git a/example-comparison.png b/example-comparison.png
deleted file mode 100644
index 88d6fe0..0000000
Binary files a/example-comparison.png and /dev/null differ
diff --git a/images/Makefile b/images/Makefile
new file mode 100644
index 0000000..70edb28
--- /dev/null
+++ b/images/Makefile
@@ -0,0 +1,8 @@
+earth.jpg:
+	curl https://www.nasa.gov/wp-content/uploads/2023/03/135918main_bm1_high.jpg -o $@
+
+example-comparison.png: earth.jpg earth_with_label.jpg
+	../diff-image -o $@   $^
+
+earth_with_label.jpg: earth.jpg
+	convert $^ -gravity South -pointsize 60  -undercolor white -stroke gray -fill gray -annotate +30+30 'The earth seen from Apollo 17' $@
diff --git a/images/earth.jpg b/images/earth.jpg
new file mode 100644
index 0000000..9a04fb6
Binary files /dev/null and b/images/earth.jpg differ
diff --git a/images/earth_with_label.jpg b/images/earth_with_label.jpg
new file mode 100644
index 0000000..23d33fc
Binary files /dev/null and b/images/earth_with_label.jpg differ
diff --git a/images/example-comparison.png b/images/example-comparison.png
new file mode 100644
index 0000000..6cb6016
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