Extraction of Bubble Contour in Single Width

We presented an algorithm to obtain exact bubble contour. For classic algorithms commonly extracting contour with multi-pixels in width, it is difficult in obtaining accurate values of bubble contour to evaluate its physical properties. For complete bubble contour, candidate regions and vectors are integrated. Calculating and comparing the angles of adjoining vectors, we get point set of bubble contour and describe it with single-pixel line. Subsequently, we go on performing the algorithm of complete contour to get accurate contour. This algorithm solves the problem that any point locates on bubble contour accurately. It takes the advantages in image processing of bubble silhouette.