[Image-SIG] Re: Explaination of encoder in
fredrik at pythonware.com
Sun Sep 5 12:51:28 CEST 2004
Kent Tenney wrote:
> I have been unable to locate an example
> of what an encoder looks like.
encoders are built-in functions, which can (incrementally) convert
data in an internal image memory to chunks of binary data.
PIL currently supports the following encoders (name, arguments):
"gif" (mode, rawmode, bits, interlace)
"raw" (mode, rawmode, stride, ystep)
"zip" (mode, rawmode, optimize, dictionary)
"jpeg" (mode, rawmode, quality, progressive,
smooth, optimize, streamtype, xdpi, ydpi)
where "mode" is an image mode, and "rawmode" is the raw data
format: the syntax is:
where the flags are I for inverted data, R for reversed bit order,
L for line interleave, B for big endian, N for native, S for signed.
the bits field can be omitted; flags should be given in alphabetical
only certain mode/rawmode combinations are supported; see
libImaging/Pack.c for the complete list.
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