关键词: 图像分析, 形态学开重建, 颗粒分析, 微囊体测量

Abstract: The size distribution and uniformity of microcapsules are the important properties to indicate the quality of electronic ink during preparation of electronic.Although morphological granulometry is common way to obtain these properties,but it usually does not hold the size and shape of the microcapsules during the measurement,since it is based the morphological opening operators.To get a fast and precise measurement,a method for measuring size distribution of microcapsules is proposed based on morphological image pre-processing and morphological reconstruction by opening based granulometry.First,acquired color image of microcapsules microscope is transformed to grey scale image,and then morphological area opening is used to remove small speckle noise and double threshing is adapted to obtain binary image.Second,On the basis of pre-processed binary image,marker controlled watershed transform is used to segment contacted microcapsules each other.Finally,for the purpose of getting precise results,morphological reconstruction by opening based granulometry is served to estimate size distribution of microcapsules.Experiment shows that this method is feasible and precise to measure size distribution and uniformity of microcapsules.

Key words: image analysis, morphological reconstruction by opening, granulometry, microcapsules measuring