From 4492f326c5d95b05b5d2c3374ed015d6df6219b5 Mon Sep 17 00:00:00 2001
From: Karl Hobley <karlhobley10@gmail.com>
Date: Mon, 23 Mar 2015 16:59:13 +0000
Subject: [PATCH] Allow changing of JPEG compression quality

---
 wagtail/wagtailimages/models.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/wagtail/wagtailimages/models.py b/wagtail/wagtailimages/models.py
index 755e1fc2a..bc14a22e1 100644
--- a/wagtail/wagtailimages/models.py
+++ b/wagtail/wagtailimages/models.py
@@ -307,7 +307,12 @@ class Filter(models.Model):
             for operation in self.operations:
                 operation.run(willow, image)
 
-            willow.save(willow.original_format, output)
+            if willow.original_format == 'jpeg':
+                # Allow changing of JPEG compression quality
+                quality = getattr(settings, 'WAGTAILIMAGES_JPEG_COMPRESSION_QUALITY', 85)
+                willow.save_as_jpeg(output, quality=quality)
+            else:
+                willow.save(willow.original_format, output)
 
         return output