[Image-SIG] 16 bit support
Tom Harris
ThePloppies@bigpond.com
Thu, 30 Aug 2001 21:06:29 +1000
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Hi
Early days playing with PIL, I have added PGM support to load and save =
16 bit images, is anyone interested in the patch (its only a few lines)? =
A question was posted some time ago on this list about the behaviour of =
the histogram method on integer images, which went unanswered. Could I =
respectfully ask if there is much interest in extending PIL so that =
there are working implementations of useful methods such as (for =
example) histograms for modes I and F. This raises several =
implementation questions, for example it becomes worthwhile caching the =
extreme values of the image data, and a histogram of a mode F image =
would need to define bin width as well as extremes.=20
A last question, I have not been able to find out anything about the IM =
image format supported by the PIL. Even my prized OReilly Encyclopaedia =
of graphics File Formats is silent. Could anyone enlighten me?
Tom Harris TheNOSPAMPloppies@bigpond.com
[remove NOSPAM to reply]
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<DIV><FONT color=3D#000000 size=3D2>Hi</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Early days playing with PIL, I have =
added PGM=20
support to load and save 16 bit images, is anyone interested in the =
patch (its=20
only a few lines)? </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>A question was posted some time ago =
on this list=20
about the behaviour of the histogram method on integer images, which =
went=20
unanswered. Could I respectfully ask if there is much interest in =
extending PIL=20
so that there are working implementations of useful methods such as (for =
example) histograms for modes I and F. This raises several =
implementation=20
questions, for example it becomes worthwhile caching the extreme values =
of the=20
image data, and a histogram of a mode F image would need to define bin =
width as=20
well as extremes. </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>A last question, I have not been =
able to find=20
out anything about the IM image format supported by the PIL. Even my =
prized=20
OReilly Encyclopaedia of graphics File Formats is silent. Could anyone =
enlighten=20
me?</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>Tom Harris <A=20
href=3D"mailto:TheNOSPAMPloppies@bigpond.com">TheNOSPAMPloppies@bigpond.c=
om</A><BR> [remove=20
NOSPAM to reply]</FONT></DIV></BODY></HTML>
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