Jouni Haanpalo, <Jouni.Haanpalo@lut.fi>, has measured spectral data from many objects. He made this data available at an ftp site, but the files are apparently unavailable (at 1999-05-23). He had a web page, but at 1999-05-23 the page is apparently unavailable. I have not been in touch with him; it seems he's left the university.
The remainder of this page provides links to the original files, at their original locations. They are not copied or available at my site.
The files are available in ASCII text format (Gzip compressed), and MatLab format (Gzip compressed). Some are tar'd. You can find information about document formats. All of the links here access Haanpalo's ftp server.
On the other hand, you might try to access the LUT pages directly.
|Set||README||ASCII format, Gzip'd||MatLab format, Gzip'd|
|Agfa IT8.7: The Agfa ColorReference, designed according to the ANSI IT8.7 standard.||README.txt||agfait872.dat.gz||agfait872.mat.gz|
|Candy: The absorbance spectra of 10 different candy dyes.||README.txt||candy190_820_2.tar.gz||candy_matlab.mat.gz|
|Daylight: Measurements of a reference white (BaSO4), spruce tree (about 100 meters from the measuring instrument), and the sky, all in different daylight illuminations.||README.txt||daylight.asc.tgz||daylight.mat.tgz|
|Forest colors: The reflectance spectra of the needles of young (less than 40 years old) individual Scoth pine and Norway spruce, and the leaves of a birch.||README.txt||forest380_850_5.tar.gz||forest_matlab.tar.gz|
|Lumber: The spectra from sawn timber branches and from pure sawn timber without any branches.||README.txt||lumber380_2700_1.tar.gz||lumber_matlab.tar.gz|
|Munsell colors, matte (AOTF)||README.txt||munsell400_700_5.tar.gz||munsell400_700_5.mat.gz|
|Munsell colors, glossy (spectrophotometer)||README.txt||munsell400_700_10.asc.gz||munsell400_700_10.mat.gz|
|Munsell colors, matte (spectrophotometer)||README.txt||munsell380_800_1.asc.gz||munsell380_800_1.mat.gz|
|Natural colors, collected from the nature, including flowers, leaves, and other colourful plants.||README.txt||natural400_700_5.asc.gz||(not provided)|
|Paper: The reflectance spectra of coloured newsprint, paper, and cardboard samples.||README.txt||paper400_700_10.tar.gz||paper_matlab.tar.gz|