POROSITY DETERMINATION OF FREEZE-DRIED POTATO BY IMAGE PROCESSING METHOD

摘要：

　　In this paper,a porosity determination method was proposed for the freeze-dried potato based on the image processing method.The potato was first frozen using different methods and then was vacuum-dried.The Scanning Electron Microscope (SEM) photographs were taken for the sliced dried potato and then were converted into the blackwhite images by image processing.By accumulating the area ratio of the black pixel in the image,the porosity of the freeze-dried potato can be determined.By applying this image processing method,it was found that the porosity varied between 0.28 and 0.61 and the sample size plays a important role in the porosity in this experiment.

关键词： Porosity Freeze drying Image processing Potato

作者: E.N.Li Z.H.Wu Z.Y.Li Z.J.Zhang

作者单位: College of Mechanical Engineering,Tianjin University of Science and Technology.Dagulan Road 1038,Hex Academy of State Administration of Grain Baiwanzhang Street 11,Xicheng District,Beijing,300222,China

会议类型: 国际会议

会议名称: The 18th International Drying Symposium Conference(第十八届国际干燥学术大会(IDS2012))

会议地点: 厦门

会议语种:英文

页码: 1-2

在线出版日期: 2012-01-11（万方平台首次上网日期，不代表论文的发表时间）