Here is the code that I am using to perform a look up table conversion
from 16 bit imagery to 8 bit imagery.
tif_image = "in.tif" #16 bit tiff image
# create 65536 entry lut. All 255s for demonstration purposes
lut = []
lut = [255] * 65536
print len(lut) # 65536, to make sure it is the right length
im1 = Image.open(tif_image)
print im1.mode # "I;16"
im2 = im1.point(lut, "L")
im2.save("out.tif")
print "done"
When I run this, I get the following error:
Unhandled exception while debugging...
Traceback (most recent call last):
File "D:\Projects\Stare Python Development\ProcessImage.py", line 34,
in ?
im2 = im1.point(lut, "L")
File "C:\Python24\Lib\site-packages\PIL\Image.py", line 1109, in point
return self._new(self.im.point(lut, mode))
ValueError: wrong number of lut entries
I would rather not have to iterate through all the pixels with a loop
since the images I am working with are 11Mpixels in size.
I am running PIL 1.1.6
Thanks.
Rich
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