python - OpenCV:单脸检测

Question

想知道如何限制for循环仅适用于第一张脸，即faces [0]

#faces here is rectangular co-ordinates. Example
#[((113, 18, 394, 358), 33)] for a single face
    if faces:
         for i in faces:
         #Detection Code here

Answer 1

做就是了

i = faces[0]

这样，您不必在其后修改任何代码。