Python Programming for Biology: Bioinformatics and Beyond

5

No positive or negative sign.

6

 The  array  axis  indices  are  0  for  the  row/height,  1  for  column/width  and  2  for  colour

values.

7

SciPy is typically installed with NumPy.

8

SciPy also has a signal.convolve()  function,  which  could  be  used,  though  this  doesn’t

deal with the edges of images so well.

9

The other options include ‘constant’, which uses a user-defined (cval=) constant value

outside  the  image  edge;  ‘nearest’,  which  extends  the  edge  values  outwards;  and  ‘wrap’,

which takes values from the opposite edge.

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