ジェスチャーサンプルのコード

import cv2 as cv import numpy as np import math

capture = cv.VideoCapture(0)

def _get_eucledian_distance(vect1, vect2): distant = vect1[0] - vect2[0] dist = np.sqrt(np.sum(np.square(distant)))

return dist

def gesture_recognition(): while True: ret, frame = capture.read() # カメラ fgbg = cv.createBackgroundSubtractorMOG2() fgmask = fgbg.apply(frame) kernel = np.ones((5, 5), np.uint8) fgmask = cv.erode(fgmask, kernel, iterations=1) res = cv.bitwise_and(frame, frame, mask=fgmask) ycrcb = cv.cvtColor(res, cv.COLORBGR2YCrCb) (, cr, ) = cv.split(ycrcb) cr1 = cv.GaussianBlur(cr, (5, 5), 0) # ガウスフィルタリング , skin = cv.threshold(cr1, 0, 255, cv.THRESH_BINARY + cv.THRESH_OTSU)

    gesture_roi = skin[0:350, 380:700]
    cv.imshow("dst_demo", skin)
    # cv.imshow("gesture_roi", gesture_roi)
    contours, heriachy = cv.findContours(gesture_roi, cv.RETR_EXTERNAL, cv.CHAIN_APPROX_SIMPLE)

    for i, contour in enumerate(contours):  # ヴィットーリプロフィール
        cv.drawContours(frame[0:350, 380:700], contours, i, (255, 0, 0), 1)

        x, y, w, h = cv.boundingRect(contour)

        cv.rectangle(frame[0:350, 380:700], (x, y), (x + w, y + h), (100, 100, 0), 1)
    hull = cv.convexHull(contour, True, returnPoints=False)
    defects = cv.convexityDefects(contour, hull)

    ndefects = 0
    if defects is not None:  # 重要!

        for i in range(defects.shape[0]):
            s, e, f, d = defects[i, 0]

            start = tuple(contour[s][0])  # スタート
            end = tuple(contour[e][0])  # 终点
            far = tuple(contour[f][0])  # 遠い点
            a = _get_eucledian_distance(start, end)
            b = _get_eucledian_distance(start, far)
            c = _get_eucledian_distance(end, far)
            angle = math.acos((b ** 2 + c ** 2 - a ** 2) / (2 * b * c))
            cv.line(frame[0:350, 380:700], start, end, [255, 255, 0], 2)
            cv.circle(frame[0:350, 380:700], far, 5, [0, 0, 255], -1)
            if angle <= math.pi / 5:  # <30度:
                ndefects = ndefects + 1
            print("数字 = %f" % ndefects)

    cv.imshow("video", frame)
    c = cv.waitKey(50)
    if c == 27:
        break

cv.namedWindow("video") gesture_recognition() cv.waitKey(0) capture.release() cv.destroyAllWindows()

YIFAN-888 / GRP_1

ジェスチャーサンプルのコード #13