我是Python和OpenCV的新手,我正在努力构建鼠标指针移动的眼动追踪系统。到目前为止,我的脚本可以识别瞳孔并跟踪瞳孔的位置,但我不确定如何将鼠标的移动分配到瞳孔的位置。
我正在使用opencv 4.0.0,python 2.7和numpy。我找到了一些答案,比如这个How can I move mouse by detected face and Eye using OpenCV and Python,但我不太确定如何在我的脚本中实现解决方案,因为我没有面部和眼睛检测。
while True:
ret, frame = cap.read()
if ret is False:
break
roi = frame[20: 300, 27: 396]
rows, cols, _ = roi.shape
gray_roi = cv2.cvtColor(roi, cv2.COLOR_BGR2GRAY)
#gray_roi = cv2.GaussianBlur(gray_roi, (7, 7), 0)
_, threshold = cv2.threshold(gray_roi, 22, 255, cv2.THRESH_BINARY_INV)
contours, hierarchy = cv2.findContours(threshold, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
contours = sorted(contours, key=lambda x: cv2.contourArea(x), reverse=True)
for cnt in contours:
(x, y, w, h) = cv2.boundingRect(cnt)
cv2.drawContours(roi, [cnt], -1, (0, 0, 255), 3)
cv2.rectangle(roi, (x, y), (x + w, y + h), (255, 0, 0), 2)
cv2.line(roi, (x + int(w/2), 0), (x + int(w/2), rows), (0, 255, 0), 2)
cv2.line(roi, (0, y + int(h/2)), (cols, y + int(h/2)), (0, 255, 0), 2)
break
cv2.imshow("Threshold", threshold)
cv2.imshow("gray roi", gray_roi)
cv2.imshow("Roi", roi)
key = cv2.waitKey(30)
if key == 27:
break
cv2.destroyAllWindows()
任何帮助表示赞赏,谢谢!
查看此博客,其中显示了如何使用OpenCV,Python和dlib https://www.pyimagesearch.com/2017/04/24/eye-blink-detection-opencv-python-dlib/构建Eye blink检测