Fix hash on bottom line after odd crops of YUV images.

diff --git a/src/lib/image.cc b/src/lib/image.cc
index 5f7d3f034199f020e6afe714da340663927b862d..0bff1a7ccfca18d9912b33e44dffa28e532c5f3c 100644 (file)
--- a/src/lib/image.cc
+++ b/src/lib/image.cc
@@ -74,7 +74,7 @@ Image::line_factor (int n) const
 int
 Image::lines (int n) const
 {
-       return size().height / line_factor (n);
+       return rint (ceil (static_cast<double>(size().height) / line_factor (n)));
 }
 
 /** @return Number of components */