小编use*_*912的帖子

我用什么函数/数学来绘制3d表面？例如,如何生成z = sin(x + y)？如何计算和绘制点数？我找不到任何例子.

我正在尝试将图像叠加在网络摄像头Feed上.这是代码的主要部分 -

# Load our overlay image: glasses.png
imgGlasses = cv2.imread('1.png')

# Create the mask for the glasses
imgGlassesGray = cv2.cvtColor(imgGlasses, cv2.COLOR_BGR2GRAY)
ret, orig_mask = cv2.threshold(imgGlasses, 10, 255, cv2.THRESH_BINARY)

# Create the inverted mask for the glasses
orig_mask_inv = cv2.bitwise_not(orig_mask)

# Convert glasses image to BGR
# and save the original image size (used later when re-sizing the image)
imgGlasses = imgGlasses[:,:,0:3]
origGlassesHeight, origGlassesWidth = imgGlasses.shape[:2]

video_capture = cv2.VideoCapture(0)

while True:
    # Capture frame-by-frame
    ret, frame = video_capture.read()

    gray = …