擅长:python、mysql、java
<pre class="lang-py prettyprint-override"><code>grayImg[np.where(grayImg > 20)] = 255
cnts, _ = cv2.findContours(~grayImg, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for c in cnts:
x, y, w, h = cv2.boundingRect(c)
cv2.circle(grayImg, (x+w//2, y+h//2), max(w, h), 127, 5)
print("Found any: ", len(cnts) > 0)
</code></pre>