image processing - Python array manipulation using numpy -

image processing - Python array manipulation using numpy -

i trying replicate border of array:

a=[1,2],[3,4]

and want result as

[1,1,1,2,2,2] [1,1,1,2,2,2] [1,1,1,2,2,2] [3,3,3,4,4,4] [3,3,3,4,4,4] [3,3,3,4,4,4]

how do in python? using

import numpy (a,2,reflect') or wrap not getting array

you can utilize nested repeat method (example in ipython):

in [1]: import numpy np in [2]: = np.array([[1,2],[3,4]]) in [3]: a.repeat(3, 1).repeat(3, 0) out[3]: array([[1, 1, 1, 2, 2, 2], [1, 1, 1, 2, 2, 2], [1, 1, 1, 2, 2, 2], [3, 3, 3, 4, 4, 4], [3, 3, 3, 4, 4, 4], [3, 3, 3, 4, 4, 4]])

but image manipulation migth want have @ e.g:

python imaging library (or newer variant, pillow) python interfaces imagemagick suite

especially imagemagick provides lot of image manipulation tools.

python image-processing numpy scipy