From 883d87bbfc3e94fa84cd63c0d658813d70b04ce0 Mon Sep 17 00:00:00 2001
From: Nikhil Sharma <Nikhil.Sharma@yodlee.com>
Date: Tue, 22 Jun 2021 12:12:42 +0530
Subject: [PATCH] fixed functions module leading to index errors

---
 tidecv/functions.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tidecv/functions.py b/tidecv/functions.py
index cc0ccd89..fda998bb 100644
--- a/tidecv/functions.py
+++ b/tidecv/functions.py
@@ -84,12 +84,12 @@ def toRLE(mask:object, w:int, h:int):
 	"""
 	import pycocotools.mask as maskUtils
 
-	if type(mask) == list:
+	if type(mask) == list and len(mask) > 0:
 		# polygon -- a single object might consist of multiple parts
 		# we merge all parts into one mask rle code
 		rles = maskUtils.frPyObjects(mask, h, w)
 		return maskUtils.merge(rles)
-	elif type(mask['counts']) == list:
+	elif type(mask) == dict and type(mask['counts']) == list:
 		# uncompressed RLE
 		return maskUtils.frPyObjects(mask, h, w)
 	else: