A Novel Morphological Characteristic Value Extraction Method for Content-Based Image Retrieval
Jin-Woo Eo, Dong‐Jin Lee · Journal of IKEEE · 2003
A novel characteristic value extraction method based on mathematical morphology is proposed. Morphological spatial frequency defined by morphological pattern distribution function is introduced and applied to define a new feature called ‘average height.' The average height is used to define a characteristic value which is to be used to generate an index key value for content-based image retrieval. Superiority of the method was proved for various images by experiment. Furthermore the fact that the proposed method does not need threshold to obtain binary image provides its applicability to content-based image retrieval.