On Thu, Mar 10, 2005 at 06:46:39PM -0500, Ray Pasco wrote: > Jeff - > > Thanks for the tips. The documentation specifically says that > im.point() can only be used to convert mode L and P images to mode 1 > images, and that the mode string must be specified as the second > parameter. If not so, the present handbook is very wrong and > misleading.
I read the documentation here:
http://www.pythonware.com/library/pil/handbook/image.htm
The part I read was this:
im.point(table) => image
im.point(function) => image
Returns a copy of the image where each pixel has been mapped through the
given table. The table should contains 256 values per band in the image. If
a function is used instead, it should take a single argument. The function
is called once for each possible pixel value, and the resulting table is
applied to all bands of the image.
If the image has mode "I" (integer) or "F" (floating point), you must use a
function, and it must have the following format:
argument * scale + offset
Map floating point images
out = im.point(lambda i: i * 1.2 + 10)
You can leave out either the scale or the offset.
Just below that is the documentation for the form of im.point you're
mentioning.
Jeff
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