lzane / fingers-detection-using-opencv-and-python Goto Github PK

How to display the count of fingers like 1 or 2 or 10

Hi, when i was test the code you put, the light of the camera becomes green. However, the window is not open. i am new in this area. How could i fix this problem?

Do you suggest any similar libraries like appscript. It is not not installing on windows successfully.

我想实现不用按键而是间隔时间捕捉图片分析手势内容，像你的恐龙游戏一样

After running the program, the effect is not good. The background is solid, but it seems that there is a lot of white noise in the subtracted background binary image, only 1 and 2 are recognized, and 3 or more has been identified as 2

See https://www.youtube.com/watch?v=DQ8orIurGxw and https://github.com/carykh/jumpcutter
The original author did not integrate the solution of having gestures, hope that you can improve his software and make it happen.
Thanks

This line

 bgModel = cv2.BackgroundSubtractorMOG2(0, bgSubThreshold)

should be

cv2.createBackgroundSubtractorMOG2(0, bgSubThreshold)

and

contours, hierarchy = cv2.findContours(thresh1, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

should be

x, contours, y = cv2.findContours(thresh1, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)

Hello, I tried to use your code (only the part of substracting the background) , but seems like nothing is happening. The image i give input, the code simply shows me the same image.

Where is this dinosaur appscript control file??

How about moving the plotting of the circle outside the defand then using the new cavity_pts output to plot the points?

PS. What kind of license you have for your software? Can I use a modified version of this function in a non-commercial research purpose? How do you want yourself to be mentioned if you allow the usage?

def calculateFingers(max_c):
    """
    https://github.com/lzane/Fingers-Detection-using-OpenCV-and-Python/blob/master/new.py#L39-L60
    """
    hull = cv2.convexHull(max_c, returnPoints=False)
    if len(hull) > 3:
        try:
            defects = cv2.convexityDefects(max_c, hull)
        except Exception:
            defects = None
        
        counter = 0
        if defects is not None:
            cavity_pts = []
            for i in range(defects.shape[0]):  # calculate the angle
                s, e, f, d = defects[i][0]
                start = tuple(max_c[s][0])
                end = tuple(max_c[e][0])
                far = tuple(max_c[f][0])
                a = math.sqrt((end[0] - start[0]) ** 2 + (end[1] - start[1]) ** 2)
                b = math.sqrt((far[0] - start[0]) ** 2 + (far[1] - start[1]) ** 2)
                c = math.sqrt((end[0] - far[0]) ** 2 + (end[1] - far[1]) ** 2)
                angle = math.acos((b ** 2 + c ** 2 - a ** 2) / (2 * b * c))  # cosine theorem
                if angle <= math.pi / 2:  # angle less than 90 degree, treat as fingers
                    counter += 1
                    cavity_pts.append(far)
            return counter, cavity_pts
    return 0, []

line 96, in
_,contours, hierarchy = cv2.findContours(thresh1, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)
ValueError: not enough values to unpack (expected 3, got 2)

when i press b to get background and n to start,it can running a little time but gradually my hand integrate into backgroud(black).