Quality evaluation of cut roses by stem's curvature (part 1) --stem extracting method

摘要

This study proposes the quantitative analysis of cut rose's stem using the shape measurement. In this paper, Area extracting method (AEM) and Width extracting method (WEM) were developed to detect a stem part. AEM utilizes the area differencebetween leaf's parts and stem's parts and WEM does the width difference of those parts. The petal part was removed well by the hue, and the leaf part was removed using Median filter and the stem position estimated by image segmentation andmulti-regression curve. As the result, it can be said that WEM has a higher applicability than AEM. But the maximum positioning error of WEM between extracted stem and true stem was two times as the maximum width of sample stems.