How the quality setting is interpreted depends upon the compression type.
For lossless compression types, this likely won't make a difference.
For JPEG-2000 Lossy, this is the encoding bit rate.
Some initial experimentation with the N5 pyramid converted from 1.isyntax suggests that --compression "JPEG-2000 Lossy" --quality 5.0 doesn't noticeably reduce the file size compared to the default quality of 10.0, but setting the quality to 1.0 or less rapidly reduces the file size.
How the quality setting is interpreted depends upon the compression type. For lossless compression types, this likely won't make a difference. For
JPEG-2000 Lossy, this is the encoding bit rate.Some initial experimentation with the N5 pyramid converted from
1.isyntaxsuggests that--compression "JPEG-2000 Lossy" --quality 5.0doesn't noticeably reduce the file size compared to the default quality of 10.0, but setting the quality to 1.0 or less rapidly reduces the file size.