<b>Smart Assistant for Blind Humans using Rashberry PI</b> An OCR Optical Character Recognition system which is a branch of computer vision and in turn a sub class of Artificial Intelligence. Optical character recognition is the translation of optically scanned bitmaps of printed or hand written text into audio output by using of Raspberry pi. OCRs developed for many world languages are already under efficient use. This method extracts moving object region by a mixture of Gaussians based background subtraction method. A text localization and recognition are conducted to acquire text information. To automatically localize the text regions from the object, a text localization and Tesseract algorithm by learning gradient features of stroke orientations and distributions of edge pixels in an Adaboost model. Text characters in the localized text regions are then binaries and recognized by off the shelf optical character recognition software. The recognized text codes are output to blind users in speech. Performance of the proposed text localization algorithm. As the recognition process is completed, the character codes in the text file are processed using Raspberry pi device on which recognize character using Tesseract algorithm and python programming, the audio output is listed. tesseract algorithm,adaboost,optical character recognition 1712-1718 Issue-3 Volume-2 Abish Raj. M. S | Manoj Kumar. A. S | Murali. V