Files
opencv_python_tests/heatmap_test.py
2019-12-06 11:48:04 +01:00

66 lines
2.3 KiB
Python

import cv2
from video_loader import VideoLoader
from background_heatmap import BackgroundHeatmap, BackgroundHeatmapFromGroup
import numpy as np
if __name__ == '__main__':
params = cv2.SimpleBlobDetector_Params()
params.minThreshold = 60
params.maxThreshold = 255
# Filter by Area.
params.filterByArea = True
params.minArea = 20
params.maxArea = 25000
params.filterByCircularity = False
params.filterByColor = False
params.filterByConvexity = False
params.filterByInertia = False
params.blobColor = 255
detector = cv2.SimpleBlobDetector_create(params)
projects_path = "C:\\UntrackedGit\\opencv_test\\him_projects"
loader = VideoLoader(projects_path)
groups = loader.get_recordings_grouped()
# out = cv2.VideoWriter('outpy.avi',cv2.VideoWriter_fourc\c('M','J','P','G'), 30, (512, 424), isColor=False)
for group in groups:
heatmaps = []
for recording in group[1]:
first = True
frames = VideoLoader.extract_frames(recording)
bgh = BackgroundHeatmap(VideoLoader.extract_frames(recording))
for frame in frames:
bgh.update(frame)
cv2.imshow("IR", frame)
# out.write(converted)
# cv2.imshow("Heatmap", heatmap.heatmap)
cv2.imshow("Background filter", bgh.lastframe)
diff = bgh.bgf_diff
# Erode dilate
kernel = np.ones((5,5),np.uint8)
diff = cv2.morphologyEx(diff, cv2.MORPH_OPEN, kernel)
keypoints = detector.detect(diff)
frame_with_keypoints = cv2.drawKeypoints(diff, keypoints, np.array([]), (0,0,255), cv2.DRAW_MATCHES_FLAGS_DRAW_RICH_KEYPOINTS)
cv2.imshow("BGF diff", frame_with_keypoints)
cv2.moveWindow("Background filter", 600, 100)
cv2.moveWindow("BGF diff", 1200, 100)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
heatmaps.append(bgh.heatmap)
cv2.destroyAllWindows()
for i, bgh in enumerate(heatmaps):
imname = "Heatmap " + str(i)
cv2.imshow(imname, bgh)
cv2.moveWindow(imname, 500 * i, 0)
cv2.waitKey(2000)
cv2.destroyAllWindows()
# out.release()
cv2.destroyAllWindows()