Crystal clear. To wait then, thank you!
Hi David,
thank you for your work. I am very excited.
It would be very nice if the behaviour of the HQ is the same as the R-Pi V2 Camera.
I mean, that at low illumination the camera automatically increases the gain.
(On the R-Pi with raspivid it is simply dark.)
Then it is possible to accumulate frames to reduce the S/N and to get picture, which are below the noise, see my simple example (picture and code).
Best regards,
Wilhelm
import numpy as np
import cv2
import time
def willi():
cap = cv2.VideoCapture("nvarguscamerasrc maxperf=true ! video/x-raw(memory:NVMM), width=1280, height=720, format=(string)NV12, framerate=60/1 ! nvvidconv flip-method=2 ! video/x-raw, width=1280, height=720, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink", cv2.CAP_GSTREAMER)
if cap.isOpened():
cv2.namedWindow("willi", cv2.WINDOW_AUTOSIZE)
counter = 0
while cv2.getWindowProperty("willi", 0) >= 0:
ret, csi = cap.read()
cv2.imshow("CSI Kamera", csi)
# grau = cv2.cvtColor(csi, cv2.COLOR_BGR2GRAY)
# cv2.imshow("CSI in s/w", grau)
summe = np.asfarray(csi)
# summe = csi.astype(int)
summe = summe * 0.0
for i in range (0,100):
ret, csi = cap.read()
# summe = summe + csi.astype(int)
summe = summe + np.asfarray(csi)
# summe = summe + ftemp
summe = summe / (255 * 100)
cv2.imshow("Average", summe )
counter = counter + 1
print("Sekunde: ", time.strftime("%S"),"100 x Acc:",counter)
keyCode = cv2.waitKey(30) & 0xFF
# Stop the program on the ESC key
if keyCode == 27:
break
cap.release()
cv2.destroyAllWindows()
else:
print("Unable to open camera")
if __name__ == "__main__": willi()
