openmv/scripts/examples/09-Feature-Detection/edges.py

21 lines
815 B
Python

# Edge detection with Canny:
#
# This example demonstrates the Canny edge detector.
import sensor, image, time
sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.GRAYSCALE) # or sensor.RGB565
sensor.set_framesize(sensor.QQVGA) # or sensor.QVGA (or others)
sensor.skip_frames(time = 2000) # Let new settings take affect.
sensor.set_gainceiling(8)
clock = time.clock() # Tracks FPS.
while(True):
clock.tick() # Track elapsed milliseconds between snapshots().
img = sensor.snapshot() # Take a picture and return the image.
# Use Canny edge detector
img.find_edges(image.EDGE_CANNY, threshold=(50, 80))
# Faster simpler edge detection
#img.find_edges(image.EDGE_SIMPLE, threshold=(100, 255))
print(clock.fps()) # Note: Your OpenMV Cam runs about half as fast while