Round object detection
Hello,
I am new to opencv and I would like some hints. I am doing clinical research and I need to detect sperm cells by analyzing images. The pictures are in grayscale, need to cleaned out of impurities and contrast must be increased. The magnification is low, so the cells are barely visible to the human eye. I have tried with templates, but doesn't quite work, because the position/orientation varies. What is the best approach for filtering and detecting an elliptical object with a tail? Here is a link with an image: http://www.profilekiss.com/picture/code-1/sperm.html or http://media.beta.photobucket.com/user/DSCDBIO/media/frogspermsmear100X.jpg.html?filters[term]=sperm%20100X&filters[primary]=images&filters[secondary]=videos&sort=1&o=0 Tx
template matching won't work ( as you found out before ) because it only compares a rect of pixels, and your sperms there can have any rotation or even bend to the one or other side.
what about adding a (small) demo pic here, so people can try out ideas ?