Python image processing - without loading the entire image into memory

Question

I am looking for a python library that will allow me to get image data from TIF images without loading the entire image into memory.

I tried to use numpy.memmap, but I could not find the image data in the file. Any advice would be helpful. Thank you

+3

Brkk Feb 26 '14 at 2:58

1 answer

fish2000 · Answer 1 · 2014-05-08T10:16:06+0000

I have two recommendations for you:

Read the image data in Python in chunks:

with open('path/to/image-data.tif', 'rb') as tif:
    while True:
        chunk = tif.read(4096)
        if not chunk:
            break

Consider using NumExpr for your processing: https://github.com/pydata/numexpr

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