Contour Statistics Files
*.pdf
Relevant papers
images/*.png
Kodak color images
Notes:
Some image files do not contain segmentation data from all subjects.
edges/*.dat
Edge data
Notes:
Row 1 contains edge extractor metadata.
The remaining rows contain records of the form:
x_coordinate y_coordinate orientation response group_number
Coordinates are in pixels.
Orientation is in radians and goes counter-clockwise from 0 to 2pi.
An edge with an orientation of 0 radians is a horizontal edge whose
darker pixels lie above the edge and whose lighter pixels lie below the
edge.
kodak_counts_16_8_72_72.txt
Edge data histogram
Notes:
The histogram contains 16 distance bins, 72 direction bins, and 72
orientation difference bins. Distance bins have 8 pixels per bin.
Direction and orientation difference bins have 2*pi/72 radians per bin.
Column 1 contains counts of edge pairs on the same contour.
Column 2 contains counts of edge pairs from different contours.
Row 1 contains counts for histogram bin (0, 0, 0). Subsequent histogram
indices are found by first incrementing the orientation difference bin
index, and then incrementing the direction bin index, and then
incrementing the distance bin index.
code/*
Source code
kodak_table.txt
Edge data table
Notes:
Each row of this file contains the following values:
d phi thd L beta
where
d is the distance in pixels
phi is the direction in degrees
thd is the orientation difference in degrees
L is the distance dependent likelihood
beta is the ratio of priors as a function of distance
except the first row which contains column labels.
This file was created by one of the test functions in the code directory.
segmenting/*
Examples of image segmenting
Notes:
Each file contains images in three rows.
The first row shows subregions of the original images.
The second row shows the subregions with color information removed and
edge pixels marked in yellow.
The third row shows the subregions with edge groups indicated by their
color.