Index of /pub/X/opengroup/R5contrib/wavelet_pic
Name Last modified Size Description
![[PARENTDIR]](/icons/back.gif)
Parent Directory -
![[TXT]](/icons/text.gif)
README 1992-05-21 08:00 1.1K
![[IMG]](/icons/image2.gif)
lena.3_32.gif 1992-05-21 08:00 245K
lena.8_1.gif 1992-05-21 08:00 225K
lena.10.gif 1992-05-21 08:00 220K
lena.12.gif 1992-05-21 08:00 216K
lena.16_2.gif 1992-05-21 08:00 212K
lena.19_4.gif 1992-05-21 08:00 210K
lena.25_6.gif 1992-05-21 08:00 209K
lena.30.gif 1992-05-21 08:00 211K
lena.50.gif 1992-05-21 08:00 211K
lena.61.gif 1992-05-21 08:00 210K
lena.gif 1992-05-21 08:00 245K
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lena.img 1992-05-21 08:00 256K
lena.raw 1992-05-21 08:00 256K
This directory contains wavelet decompress image
of grayscale "lena", 512x512x8.
The middle number of the file name means compression ratio with respect to
the original raw file size.
So, the file size of compressed lena.3_32.gif will be
262144bytes / 3.32 ~= 78959byes.
The 19.4 : 1 file is using the default setting with a time on
compress/decompress sustained at 1.96 sec on a SSP2.
The original is in file "lena.raw".
Since my hand crafted "raw2gif" convertor is done rapidly, some gif
viewer may complained. I am sorry.
The original is left here so that people can make side by side comparison.
and also MSE comparison.
Please feedback comments to:
willy@bucsf.bu.edu, Kin Hui.
If someone our there can make a timing of the lena.raw on some other JPEG
variance algorithm, please email me the results.
Hopefully, this directory will start a USENET wide understand of the still
image compression technology. Very much of the algorithms are too young
and really need people to improve on. Thank you very much.
And thanks MIT for the avalibity of "export.lcs.mit.edu". TNX 1.0E06.
Kin, Hui. willy@bucsf.bu.edu May, 21, 1991.