From 1ac8773f20c25b9ebbe559efe25591ba7a24acdb Mon Sep 17 00:00:00 2001
From: Miguel <m.i@gmx.at>
Date: Sat, 30 Mar 2019 11:09:06 +0100
Subject: added haskell code

---
 hulls/Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 hulls/Makefile

(limited to 'hulls/Makefile')

diff --git a/hulls/Makefile b/hulls/Makefile
new file mode 100644
index 0000000..9577ced
--- /dev/null
+++ b/hulls/Makefile
@@ -0,0 +1,8 @@
+data:
+	# create image:
+	convert -font Arial -pointsize 24 label:Y +trim +repage -negate -bordercolor black -border 10 mask.gif
+	# create binary edge
+	convert mask.gif -edge 1 -threshold 0 mask_edge.gif
+	# list coordinates of only white edge pixels
+	convert mask_edge.gif txt:- > txt
+	sed -n 's/^\(.*\):.*white$$/\1/p' txt
-- 
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