Respect collection tile format

openzoom · Feb 1, 2022 · 2d85290 · 2d85290
1 parent 87363f6
commit 2d85290
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,7 @@
   parameter for setting background color of collection tiles. This can be useful
   when working with images that don’t compose well on a black background
   (default).
+- Respect `DeepZoomCollection` `tile_format` parameter.
 
 ## Version 2.0.0a2 – January 16, 2020
 

diff --git a/deepzoom/__init__.py b/deepzoom/__init__.py
@@ -272,8 +272,11 @@ def _append_image(self, path, i):
                 tile_image = PIL.Image.new(
                     "RGB", (self.tile_size, self.tile_size), self.tile_background_color
                 )
-                q = int(self.image_quality * 100)
-                tile_image.save(tile_path, "JPEG", quality=q)
+                if self.tile_format == "jpg":
+                    jpeg_quality = int(self.image_quality * 100)
+                    tile_image.save(tile_path, "JPEG", quality=jpeg_quality)
+                else:
+                    tile_image.save(tile_path)
             tile_image = PIL.Image.open(tile_path)
             source_path = "%s/%s/%s_%s.%s" % (
                 _get_files_path(path),