| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 727454 | Measurement | 2013 | 6 Pages |
A measurement method for contact angle based on Hough Transformation is put forward in this paper. It is proved reliable through a study on the drop shape of water on Teflon, polypropylene and stainless steel. The measurement method for contact angle is implemented in the following procedures, drop shape image graying, and threshold segmentation with OTSU method, edge detection by Roberts operator, and the line and circle detection by Hough Transformation. The water contact angles on the Teflon, polypropylene and stainless steel are obtained by calculation; they are 113.23°, 104.34° and 77.28° respectively. The noise experiment shows that the method works with high robustness.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A measurement method based on Hough Transformation for contact angle is put forward in this paper. ► Contact angle and triple point are obtained in computer. ► The whole procedure can work without human operators. ► The measuring method may produce a measurement of contact angle based on computer vision. ► The measuring method works with high robustness.
