How to create new numpy array by using a function on every row with no loops
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so I've got a project which asks of me to use a DFT function that I've built (on an array of size [N,1]) and use that function on an entire image of size [N,M].
I've been asked to do so using no loops and I can't figure it out.
Is there a way to use a function on each one of my rows which returns a new row and that way build a new numpy array without loops?
python-3.x image-processing computer-science
asked Nov 9 at 21:26
edan patt
1
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so I've got a project which asks of me to use a DFT function that I've built (on an array of size [N,1]) and use that function on an entire image of size [N,M].
I've been asked to do so using no loops and I can't figure it out.
Is there a way to use a function on each one of my rows which returns a new row and that way build a new numpy array without loops?
python-3.x image-processing computer-science
asked Nov 9 at 21:26
edan patt
1
Sounds like you're looking fornumpy.apply_along_axis
– jwil
Nov 9 at 21:28
1
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
so I've got a project which asks of me to use a DFT function that I've built (on an array of size [N,1]) and use that function on an entire image of size [N,M].
I've been asked to do so using no loops and I can't figure it out.
Is there a way to use a function on each one of my rows which returns a new row and that way build a new numpy array without loops?
python-3.x image-processing computer-science
asked Nov 9 at 21:26
edan patt
1
so I've got a project which asks of me to use a DFT function that I've built (on an array of size [N,1]) and use that function on an entire image of size [N,M].
I've been asked to do so using no loops and I can't figure it out.
Is there a way to use a function on each one of my rows which returns a new row and that way build a new numpy array without loops?
python-3.x image-processing computer-science
python-3.x image-processing computer-science
asked Nov 9 at 21:26
edan patt
1
asked Nov 9 at 21:26
edan patt
1
asked Nov 9 at 21:26
edan patt
1
asked Nov 9 at 21:26
edan patt
1
asked Nov 9 at 21:26
edan patt
1
1
Sounds like you're looking fornumpy.apply_along_axis
– jwil
Nov 9 at 21:28
1
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30
add a comment |
Sounds like you're looking fornumpy.apply_along_axis
– jwil
Nov 9 at 21:28
1
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30
Sounds like you're looking for
numpy.apply_along_axis– jwil
Nov 9 at 21:28
Sounds like you're looking for
numpy.apply_along_axis– jwil
Nov 9 at 21:28
1
1
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30
add a comment |
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Sounds like you're looking for
numpy.apply_along_axis– jwil
Nov 9 at 21:28
1
Hey, so numpy.apply_along_axis uses a for loop internally and is slow, I've already tested it and I wasn't very happy with the results.
– edan patt
Nov 9 at 21:30