"An alternative approach to computing shape orientation with an application to compound shapes",
Jovisa Zunic and Paul L. Rosin,
International Journal of Computer Vision,
vol. 81, no. 2, pp. 138-154, 2009
The images from the above paper are shown below, and the (full resolution) set is zipped up for downloading here. (filesize = 16MB)
trademarks (figure 2)
figure 3 - original gray level versions
figure 3 - extracted blobs
figure 7 - original gray level versions
figure 7 - after intensity correction
figure 7 - extracted blobs
figure 8 - original gray level versions
figure 8 - after intensity correction
figure 8 - extracted blobs
figure 11
figure 12
   
figure 13
   
figure 14