Main Article Content
Abstract
Security of secret data is major concern in today’s digitized world. It is an important task to preserve the secret data from the probable threats, during the transmission. Various techniques [1,2] have been proposed in literature for secure transmission ofdatabut not much work has been done on the secret transmission of images which is one of the difficult task to accomplish. Secret image sharing is one of the important techniques used in case of image transmission. Images are encrypted before transmission over communication channel. In this paper we have discussed various techniques that are used for the image segmentation.Additionally we have discussed the strengths and weaknesses of algorithms and simplified threshold segmentation method.