From e50bd37655e55bf47eb0973e860f79441b0e7c9f Mon Sep 17 00:00:00 2001
From: Nick White <git@njw.name>
Date: Wed, 8 May 2019 10:07:03 +0100
Subject: Set DPI for images, and maximally compress jpg (with binarisation it
 doesn't make much difference)

---
 format-for-hocr-pdf.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'format-for-hocr-pdf.sh')

diff --git a/format-for-hocr-pdf.sh b/format-for-hocr-pdf.sh
index 89d4dd8..0059f81 100644
--- a/format-for-hocr-pdf.sh
+++ b/format-for-hocr-pdf.sh
@@ -9,6 +9,10 @@ test $# -ne 2 && echo "$usage" && exit 1
 # All possible training files to check for
 TRAININGS="rescribealphav4 rescribealphav5"
 
+# Set image compression and dpi
+QUALITY=0
+DPI=600
+
 if ! test -d "$1"; then
 	echo "Error: $1 does not exist"
 	exit 1
@@ -29,7 +33,7 @@ find "$1" -maxdepth 1 -type f -name '*.binarized.png' | while read i; do
 		continue
 	fi
 
-	gm convert "$i" "$2/$b.jpg" || exit 1
+	gm convert -quality $QUALITY -density ${DPI}x${DPI} "$i" "$2/$b.jpg" || exit 1
 	cp "$hocr" "$2/$b.hocr" || exit 1
 done
 
-- 
cgit v1.2.1-24-ge1ad