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jpegwrite, var, file [, header, quality]
jpegwrite(var, file [, header, quality])
[jpeg] Writes 2D byte array var and string
header to file in jpeg-compressed format with
compression quality parameter quality, which must range
between 0 and 100 and defaults to 75. jpeg compression discards part of
the resolution, and can reach high degrees of compression that way. The
higher quality is, the larger the file size and the less
information is lost in the compression. You may omit
header or quality or both.
The function form returns 1 on success, and 0 on failure.
LUX uses version 6b of the Independent jpeg Group’s jpeg library to implement this routine.