Memory Error When Converting to LAB Color Space.

[Michael Alonge]

Hello,

This is my first post in this forum. Thank you in advance for any and all 
help.

I have an image that when initially loaded in RGB yields a memory error 
when converted to LAB via color.rgb2lab(image). I get the following error:

>>> lab_image = color.rgb2lab(image)
Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    lab_image = color.rgb2lab(image)
  File "C:\Python33\lib\site-packages\skimage\color\colorconv.py", line 
801, in rgb2lab
    return xyz2lab(rgb2xyz(rgb))
  File "C:\Python33\lib\site-packages\skimage\color\colorconv.py", line 
523, in rgb2xyz
    arr = _prepare_colorarray(rgb).copy()
MemoryError

The picture itself has the following specs:

    File Type: .PNG

    File size: 20 MB

    Resolution: 72 ppi

    image.shape = (5184, 3456, 3)

I am working on a windows 7 machine with python 3.3.4.

I am an intermediate python programmer, and have no idea where to start 
when it comes to memory allocation. Any and all help is appreciated,

Thank you,

Michael Alonge
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