New Pybind demo (#1073)

examples/tutorial_api_python/09_keypoints_from_heatmaps.py

+# From Python
+# It requires OpenCV installed for Python
+import sys
+import cv2
+import os
+from sys import platform
+import argparse
+import numpy as np
+
+# Import Openpose (Windows/Ubuntu/OSX)
+dir_path = os.path.dirname(os.path.realpath(__file__))
+try:
+    # Windows Import
+    if platform == "win32":
+        # Change these variables to point to the correct folder (Release/x64 etc.) 
+        sys.path.append(dir_path + '/../../python/openpose/Release');
+        os.environ['PATH']  = os.environ['PATH'] + ';' + dir_path + '/../../x64/Release;' +  dir_path + '/../../bin;'
+        import pyopenpose as op
+    else:
+        # Change these variables to point to the correct folder (Release/x64 etc.) 
+        sys.path.append('../../python');
+        # If you run `make install` (default path is `/usr/local/python` for Ubuntu), you can also access the OpenPose/python module from there. This will install OpenPose and the python library at your desired installation path. Ensure that this is in your python path in order to use it.
+        # sys.path.append('/usr/local/python')
+        from openpose import pyopenpose as op
+except ImportError as e:
+    print('Error: OpenPose library could not be found. Did you enable `BUILD_PYTHON` in CMake and have this Python script in the right folder?')
+    raise e
+
+# Flags
+parser = argparse.ArgumentParser()
+parser.add_argument("--image_path", default="../../../examples/media/COCO_val2014_000000000294.jpg", help="Process an image. Read all standard formats (jpg, png, bmp, etc.).")
+args = parser.parse_known_args()
+
+# Load image
+imageToProcess = cv2.imread(args[0].image_path)
+
+def get_sample_heatmaps():
+    params = dict()
+    params["model_folder"] = "../../../models/"
+    params["heatmaps_add_parts"] = True
+    params["heatmaps_add_bkg"] = True
+    params["heatmaps_add_PAFs"] = True
+    params["heatmaps_scale"] = 3
+    params["upsampling_ratio"] = 1
+    params["body"] = 1
+
+    # Starting OpenPose
+    opWrapper = op.WrapperPython()
+    opWrapper.configure(params)
+    opWrapper.start()
+
+    # Process Image and get heatmap
+    datum = op.Datum()
+    imageToProcess = cv2.imread(args[0].image_path)
+    datum.cvInputData = imageToProcess
+    opWrapper.emplaceAndPop([datum])
+    poseHeatMaps = datum.poseHeatMaps.copy()
+    opWrapper.stop()
+
+    return poseHeatMaps
+
+# Get Heatmap
+poseHeatMaps = get_sample_heatmaps()
+
+# Starting OpenPose
+params = dict()
+params["model_folder"] = "../../../models/"
+params["body"] = 2  # Disable OP Network
+opWrapper = op.WrapperPython()
+opWrapper.configure(params)
+opWrapper.start()
+
+# Pass Heatmap and Run OP
+datum = op.Datum()
+datum.cvInputData = imageToProcess
+datum.poseNetOutput = poseHeatMaps
+opWrapper.emplaceAndPop([datum])
+
+# Display Image
+print("Body keypoints: \n" + str(datum.poseKeypoints))
+cv2.imshow("OpenPose 1.4.0 - Tutorial Python API", datum.cvOutputData)
+cv2.waitKey(0)

examples/tutorial_api_python/CMakeLists.txt

@@ -6,4 +6,5 @@ configure_file(05_keypoints_from_images_multi_gpu.py 05_keypoints_from_images_mu
 configure_file(06_face_from_image.py 06_face_from_image.py)
 configure_file(07_hand_from_image.py 07_hand_from_image.py)
 configure_file(08_heatmaps_from_image.py 08_heatmaps_from_image.py)
+configure_file(09_keypoints_from_heatmaps.py 09_keypoints_from_heatmaps.py)
 configure_file(openpose_python.py openpose_python.py)

python/openpose/openpose_python.cpp

@@ -242,7 +242,7 @@ PYBIND11_MODULE(pyopenpose, m) {
         .def_readwrite("cameraMatrix", &op::Datum::cameraMatrix)
         .def_readwrite("cameraExtrinsics", &op::Datum::cameraExtrinsics)
         .def_readwrite("cameraIntrinsics", &op::Datum::cameraIntrinsics)
-        .def_readwrite("poseNetOutput", &op::Datum::elementRendered)
+        .def_readwrite("poseNetOutput", &op::Datum::poseNetOutput)
         .def_readwrite("scaleInputToNetInputs", &op::Datum::scaleInputToNetInputs)
         .def_readwrite("netInputSizes", &op::Datum::netInputSizes)
         .def_readwrite("scaleInputToOutput", &op::Datum::scaleInputToOutput)