Questions tagged [scipy.ndimage]
50 questions
0
votes
1 answer
scipy.ndimage.generic_filter1d not working
I am trying to use scipy.ndimage.generic_filter1d for the first time, but it's not going well. Here's what I'm trying
import numpy as np
from scipy.ndimage import generic_filter1d
def test(x):
return x.sum()
im_cube =…
user3433489
- 911
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- 10
- 24
0
votes
1 answer
Shaped gradient fill in numpy/scipy
Looking for a way to fill all of the values within an arbitrary shape with a gradient of values... which must follow the outline of the shape. For example, the "shaped gradient" fill tool in gimp would give you:
Output should be a 2d numpy array.
TheHeadlessSourceMan
- 587
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- 18
0
votes
2 answers
What does this image-kernel correlation matrix represent?
I am experimenting with some computer vision techniques, specifically feature detection. I am trying to identify features by conducting auto-correlation between an image and a feature-kernel.
However, the resulting correlation-matrix doesn't make…
Matthew E. Miller
- 557
- 1
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- 13
-2
votes
1 answer
How to search numbers, letters as well as alphanumeric from an image?
what I want to do is a image recognition is
given image (5000 × 3500) dimension (white background)
the image will have geometric figure as well as alphanumerical
python will do the recognition of.
charankumar B S
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- 1
-4
votes
2 answers
What is the shortest way to calculate running median in python?
I need to calculate a running median in python. Currently I do it like this:
med_y = []
med_x = []
for i in numpy.arange(240, 380, 1):
med_y.append(numpy.median(dy[(dx > i)*(dx < i+20)]))
med_x.append(i + 10)
Here the data is stored in dx…
Juha
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