[vtkusers] How can i get the pixel

[Jose David Pfuturi Huisa]

Hello everybody
I have a problem with  image processing, How can i get the pixel of an image jpg or BMP?. i want to get dimensions of an image and each pixel, i use Python and i need to segment an image for an OCR. do you have any idea how i can do it :(? 
thank in advance.
José
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