From 87784fa97ed104f9d77f95e4f0668bf0c8890d64 Mon Sep 17 00:00:00 2001
From: Nikita Manovich <nikita.manovich@intel.com>
Date: Sat, 4 Apr 2020 06:25:00 +0300
Subject: [PATCH] Increase preview size till 256, 256.

Previous preview size was not optimal and led to a blurred image
due to too small size.
---
 cvat/apps/engine/media_extractors.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cvat/apps/engine/media_extractors.py b/cvat/apps/engine/media_extractors.py
index 778aec9a..c32d7abd 100644
--- a/cvat/apps/engine/media_extractors.py
+++ b/cvat/apps/engine/media_extractors.py
@@ -52,11 +52,12 @@ class IMediaReader(ABC):
 
     @staticmethod
     def _get_preview(obj):
+        PREVIEW_SIZE = (256, 256)
         if isinstance(obj, io.IOBase):
             preview = Image.open(obj)
         else:
             preview = obj
-        preview.thumbnail((128, 128))
+        preview.thumbnail(PREVIEW_SIZE)
 
         return preview.convert('RGB')