Can anyone give me an example how to apply a threshold value to an image? (everything above a certain brightness level becomes white, and everything below the level becomes black.)
I was told I should use 256-item mapping table and pass it to the "point" method. But how should the 256-item mapping table look like, if the threshold is 18( found from the histogram) Thank you for any hint. L. -- http://mail.python.org/mailman/listinfo/python-list
