multi_color_blob_tracking.py
import csi
import time
import math
thresholds = [
(30, 100, 15, 127, 15, 127),
(30, 100, -64, -8, -32, 32),
(0, 15, 0, 40, -80, -20),
]
csi0 = csi.CSI()
csi0.reset()
csi0.pixformat(csi.RGB565)
csi0.framesize(csi.QVGA)
csi0.snapshot(time=2000)
csi0.auto_gain(False)
csi0.auto_whitebal(False)
clock = time.clock()
while True:
clock.tick()
img = csi0.snapshot()
for blob in img.find_blobs(thresholds, pixels_threshold=200, area_threshold=200):
if blob.elongation > 0.5:
img.draw_edges(blob.min_corners, color=(255, 0, 0))
img.draw_line(image.get_major_axis_line(blob), color=(0, 255, 0))
img.draw_line(image.get_minor_axis_line(blob), color=(0, 0, 255))
img.draw_detection(blob)
img.draw_keypoints(
[(blob.cx, blob.cy, int(math.degrees(blob.rotation)))], size=20
)
print(clock.fps())