X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;ds=sidebyside;f=intro%2Fimg%2FMakefile;h=74e9bd3e7b9cc62ebc92abdfc43d45ee43ba9dc4;hb=40c364b9de5d27b8afedcfd83d76499acc9e31af;hp=2447e28e5521c88e29f6927ae44bd9ccc6f660c4;hpb=a4bb863836abcafe5b813b14233a24228dc4198e;p=phd-thesis.git

diff --git a/intro/img/Makefile b/intro/img/Makefile
index 2447e28..74e9bd3 100644
--- a/intro/img/Makefile
+++ b/intro/img/Makefile
@@ -1,2 +1,4 @@
 %g.jpg: %.jpg
 	convert $< -set colorspace Gray -separate -average $@
+%g.png: %.png
+	convert $< -set colorspace Gray -separate -average $@