From 566b2be53cb0de5b52b806a6418fcab795831d34 Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Mon, 4 May 2020 11:04:00 +0100
Subject: Have wipefile do vertical as well as horizontal wiping

---
 util.go      | 2 ++
 wipesides.go | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/util.go b/util.go
index f0864e9..304b209 100644
--- a/util.go
+++ b/util.go
@@ -79,6 +79,8 @@ func surrounding(img *image.Gray, x int, y int, size int) []int {
 	return s
 }
 
+// BinToZeroInv converts a binary thresholded image to a zero inverse
+// binary thresholded image
 func BinToZeroInv(bin *image.Gray, orig *image.RGBA) (*image.RGBA, error) {
 	b := bin.Bounds()
 	if !b.Eq(orig.Bounds()) {
diff --git a/wipesides.go b/wipesides.go
index 0fc4a32..e4b9ad5 100644
--- a/wipesides.go
+++ b/wipesides.go
@@ -175,7 +175,8 @@ func WipeFile(inPath string, outPath string, wsize int, thresh float64, min int)
 	gray := image.NewGray(image.Rect(0, 0, b.Dx(), b.Dy()))
 	draw.Draw(gray, b, img, b.Min, draw.Src)
 
-	clean := Wipe(gray, wsize, thresh, min)
+	hclean := Wipe(gray, wsize, thresh, min)
+	clean := VWipe(hclean, wsize, thresh, min)
 
 	f, err = os.Create(outPath)
 	if err != nil {
-- 
cgit v1.2.1-24-ge1ad