All of the files in the meas and simu data sets end in .bin and are in binary, 512x360 4-byte/pixel IEEE floating point format. Each floating point value represents the luminance at that pixel in cd/m^2. All of the files in the radims data set end in .pic and are in uncompressed Radiance RGBE (red,green,blue,exponent) picture format. They can be displayed with the Radiance "ximage" program. (See the URL "http://radsite.lbl.gov/radiance/HOME.html" for details on how to obtain this free package.) They may also be converted to and from the binary IEEE floating point format as follows:
% pvalue -h -H -b -df -o +e .0055866 image.pic > image.bin % pvalue -r -h -b -df -y 360 +x 512 +e 179 image.bin > image.picThere are 36 files in each data set, 3 views of each of 12 different lighting configurations. The RADIANCE perspective view parameters for each view are:
Left: -vp 1.822 .153 1.187 -vd -.317 .948 .019 -vh 35 -vv 25 -vl -.033 Middle: -vp 1.822 .153 1.187 -vd -.017 .999 .051 -vh 35 -vv 25 -vl -.033 Right: -vp 1.822 .153 1.187 -vd .244 .970 .020 -vh 35 -vv 25 -vl -.033Where -vp x y z indicates the view origin, -vd dx dy dz indicates the view direction vector, -vh hang and -vv vang indicate the horizontal and vertical view angles (full angles in degrees) and -vl vdist indicates the vertical shift in the image perspective (sliding the image downward from the center of the view pyramid a distance of .033 times the image height).
The images are named as follows:
Root filename Configuration ============= ============= df+dl+ww_l direct fluorescents + downlights + wall-washers, left df+dl+ww_m direct fluorescents + downlights + wall-washers, middle df+dl+ww_r direct fluorescents + downlights + wall-washers, right df+ww_l direct fluorescents + wall-washers, left df+ww_m direct fluorescents + wall-washers, middle df+ww_r direct fluorescents + wall-washers, right df_l direct fluorescents + wall-washers, left df_m direct fluorescents, middle df_r direct fluorescents, right dif+dl+ww_l direct/indirect fluorescents + downlights + wall-washers, left dif+dl+ww_m direct/indirect fluorescents + downlights + wall-washers, middle dif+dl+ww_r direct/indirect fluorescents + downlights + wall-washers, right dif+ww_l direct/indirect fluorescents + wall-washers, left dif+ww_m direct/indirect fluorescents + wall-washers, middle dif+ww_r direct/indirect fluorescents + wall-washers, right dif_l direct/indirect fluorescents, left dif_m direct/indirect fluorescents, middle dif_r direct/indirect fluorescents, right dl_l downlights, left dl_m downlights, middle dl_r downlights, right if+dl+ww_l indirect fluorescents + downlights + wall-washers, left if+dl+ww_m indirect fluorescents + downlights + wall-washers, middle if+dl+ww_r indirect fluorescents + downlights + wall-washers, right if+dl_l indirect fluorescents + downlights, left if+dl_m indirect fluorescents + downlights, middle if+dl_r indirect fluorescents + downlights, right if+ww_l indirect fluorescents + wall-washers, left if+ww_m indirect fluorescents + wall-washers, middle if+ww_r indirect fluorescents + wall-washers, right if_l indirect fluorescents, left if_m indirect fluorescents, middle if_r indirect fluorescents, right ww_l wall-washers, left ww_m wall-washers, middle ww_r wall-washers, right