Getting list of pixel values from PIL

Question

Guys, I\'m looking for a bit of assistance. I\'m a newbie programmer and one of the problems I\'m having at the minute is trying to convert a black & white .jpg

Answer 1

As I commented above, problem seems to be the conversion from PIL internal list format to a standard python list type. I've found that Image.tostring() is much faster, and depending on your needs it might be enough. In my case, I needed to calculate the CRC32 digest of image data, and it suited fine.

If you need to perform more complex calculations, tom10 response involving numpy might be what you need.