Convert a string into 2D Array in python

Question

I take an image from webcam in python, it is an array so I convert it to string using numpy.array_str(), now after doing that I need to convert that string back to an array as efficiently as possible. I have already tried it using for statements but it takes around half a second, which is just too slow for my use-case. I have even searched the web for numpy's built-in function to do the task but did not find any solution.

"it is a array so I convert it to string" - why? If you want to save it to a file, use numpy.save (binary) or numpy.savetxt (human readable) instead — ForceBru
– ForceBru, Commented Jul 13, 2021 at 12:05
In this case, see stackoverflow.com/questions/26377023/… and stackoverflow.com/questions/30167538/… — ForceBru
– ForceBru, Commented Jul 13, 2021 at 12:14

amer sam · Accepted Answer · 2021-07-13 12:11:52Z

1

The numpy.array_str() function returns a string with a whitespace separator between the array elements as https://numpy.org/doc/stable/reference/generated/numpy.array_str.html

To convert it back to an array, you can use str.split() without specifying the delimiter because it considers whitespace as default.

answered Jul 13, 2021 at 12:11

amer sam

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