給opencv函式寫乙個python裝飾器

今天，在python下找到了乙個類似的工具，叫pyimagewatch. 雖然沒有完全理解其使用，但其思路可以參考一下：實現相關功能的方式就是給相應的opencv函式寫乙個裝飾器。比如想檢視乙個opencv函式的執行結果（watcher功能），實現所用的**如下：

class checker:

"""checker for opencv functions."""
def __init__(self, cv_function_name: str):
"""checker for opencv functions."""
cv.namedwindow(cv_function_name)
self.cv_function_name = cv_function_name
self.cv_function = getattr(cv, cv_function_name)
def start(self, decorator):
"""starts checking the opencv function."""
setattr(cv, self.cv_function_name, decorator())
def stop(self):
"""stops checking the opencv function."""
setattr(cv, self.cv_function_name, self.cv_function)
class watcher(checker):
"""watcher for opencv functions."""
def watch(self):
"""decorator to watch an opencv function."""
@wraps(self.cv_function)
result = self.cv_function(*args, **kwargs)
cv.imshow(self.cv_function_name, result)
cv.waitkey()
return result
def start(self):
"""starts watching the opencv function."""
super().start(self.watch)

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寫乙個函式，實現strstr

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python寫乙個服務 Python寫乙個服務

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