Merge pull request #938 from luxonis/fix/cv2_cond_import

Fix cv2 import

Author: daniilpastukhov

depthai_sdk/setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name='depthai-sdk',
-    version='1.9.4',
+    version='1.9.4.1',
     description='This package provides an abstraction of the DepthAI API library.',
     long_description=io.open("README.md", encoding="utf-8").read(),
     long_description_content_type="text/markdown",

depthai_sdk/src/depthai_sdk/previews.py

@@ -2,9 +2,13 @@
 import math
 from functools import partial
 
-import cv2
 import numpy as np
 
+try:
+    import cv2
+except ImportError:
+    cv2 = None
+
 try:
     from turbojpeg import TurboJPEG, TJFLAG_FASTUPSAMPLE, TJFLAG_FASTDCT, TJPF_GRAY
     turbo = TurboJPEG()