Detect features from an image with STAR algorithm
fobj = imdetect_STAR(im [,maxSize [,responseThreshold [,lineThresholdProjected [,lineThresholdBinarized [,suppressNonmaxSize]]]]]);
Input image
Maximum size of the features. Default value is 16.
Response threshold. Default value is 30.
Default value is 10.
Default value is 8.
Default value is 5.
Features object contains following fields -
Type of features
Numbers of detected features
Coordinates of the detected features - X
Coordinates of the detected features - Y
Size of detected features
keypoint orientation
The response by which the most strong keypoints have been selected.
pyramid octave in which the keypoint has been detected
object id
This function used to detect the features of an image using STAR method
1. OpenCV 2.4 Online Documentation