Array bug in getConstCvMat if mVolume=0, now returning empty Mat

README.md

@@ -191,12 +191,12 @@ We use standard formats (JSON, XML, PNG, JPG, ...) to save our results, so there
 
 #### Pose Output Format
 <p align="center">
-    <img src="doc/media/keypoints_body.gif", width="480">
+    <img src="doc/media/keypoints_body.png", width="480">
 </p>
 
 #### Face Output Format
 <p align="center">
-    <img src="doc/media/keypoints_face.gif", width="480">
+    <img src="doc/media/keypoints_face.png", width="480">
 </p>
 
 

src/openpose/core/array.cpp

@@ -174,7 +174,8 @@ namespace op
                 mSize = {};
                 mVolume = 0;
                 spData.reset();
-                mCvMatData = std::make_pair(false, cv::Mat{});
+                // cv::Mat available but empty
+                mCvMatData = std::make_pair(true, cv::Mat{});
             }
         }
         catch (const std::exception& e)