From 84810a6c5cdd870ad5c56e2f618745e78d4ba3be Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Mon, 5 Mar 2018 08:21:51 +0000
Subject: [PATCH] update notes

---
 libvips/convolution/canny.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/libvips/convolution/canny.c b/libvips/convolution/canny.c
index e63cafa6..72f0f7b2 100644
--- a/libvips/convolution/canny.c
+++ b/libvips/convolution/canny.c
@@ -38,10 +38,8 @@
 /* TODO
  *	- verify that our interpolating max edge works
  *	- does it actually help much?
- *	- can skip the sqrt() 
  *	- support other image types
  * 	- swap atan2 for a LUT with perhaps +/- 2 or 4 bits
- *	- check sobel speed with separated and non-sep masks
  *	- add autothreshold with otsu's method
  *	- leave blob analysis to a separate pass
  */