Fingertip detection based on background difference algorithm in a skin tone like background

Fingertip interaction with gestures is widely used in human-computer interaction due to its high degree of freedom and convenience. However, in many applications, fingertip detection algorithms may encounter problems. In order to detect fingertips in a similar skin color background, this paper proposes a fingertip detection method based on background difference algorithm. Firstly, preprocess the images captured by the camera, use Gaussian filtering and background subtraction algorithms to obtain a binary image of the palm, and then perform edge detection on the image to extract the edge information of the palm. Finally, based on convex hull analysis, fingertip positioning is achieved.