I have a CAM500B OV5640 camera connected to a NanoPi NEO Air board. When using the mjpg-streamer demo that comes with the board, the camera output looks correct. However when trying to take a still picture using OpenCV in Python, the image output looks like a line of pixels stretched vertically.
#!/usr/bin/env python
""" Simple camera interface. """
import cv2
import time
if __name__ == "__main__":
cap = cv2.VideoCapture(0)
if not cap.isOpened():
print "Failed to create capture object."
quit(-1)
cap.set(cv2.cv.CV_CAP_PROP_FRAME_WIDTH,1280)
cap.set(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT,720)
#cap.set(cv2.cv.CV_CAP_PROP_FORMAT, cv2.cv.IPL_DEPTH_32F)
print "Ramping camera..."
for i in xrange(0, 30):
_, image = cap.read()
cv2.imwrite("test.jpg", image)
cap.release()
print "Done."
