Pattern recognition places an important role in partitioning the higher than mentioned issues. Pattern recognition analysis is complete provided that it acknowledges distorted document, which is deficient within the present analysis works. In all image pattern recognition, process, analysis and PC vision techniques Edge detection plays major role. In recent past pattern recognition directly deals pc vision systems, orientation and intensity info concerning edges as primary input for more process to document identification. This review provides a summary of the literature on the sting detection ways for pattern recognition. © 2019 Elsevier B.V., All rights reserved.