如何捕获"OpenCV错误"?在Python中 [英] How to catch "OpenCV Error" in Python

问题描述

如果出现OpenCV错误:...

If I get OpenCV Error: ...

由于OpenCV Error使用两个词，捕获它的语法是什么?我可以捕获以下cv.error，但是我将如何捕获呢?

what's the syntax to catch it since OpenCV Error uses two words? I'm able to catch the following cv.error but how would I catch this?

我不明白...答案很明显吗?我不清楚吗?

I don't get it... is the answer obvious? Am I being unclear?

编辑2

我无法在其他计算机上复制它，但它看起来类似于:

I can't reproduce it b/c I'm on a different computer but it looked similar to:

OpenCV Error: Bad argument. Something something array

cv.error: This is another error

我能够通过以下命令捕获cv.error但不能捕获OpenCV错误:

I'm able to catch cv.error but not OpenCV Error with the following:

try:
    # do a thing
except (cv.error, OpenCV Error):
    print "Can't do the thing"
    sys.exit(1)

推荐答案

尝试cv2.error.

try:
    ...
except cv2.error as e:
    ...

这是文档中的页面，但这是仅适用于C/C ++接口-在OpenCV的Python错误处理中找不到任何内容(可悲的是，我找不到Python接口的文档).

Here's the page from the documentation but it's only for the C/C++ interface -- I can't find anything on the Python error handling for OpenCV (I find the documentation for the Python interface to be sadly lacking).

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