i have a silhouette for human image(http://i.imgur.com/fTwkZ.png) and I put the image boundary in an array and then i passed it to the Freeman Chain Code function. this image shows the body boundary is connected to each other but in real it gives me this error
"Curve isn't 8-connected in elements:
idx -> 350
idx -> 700
idx -> 1050
idx -> 1400
....
"