Braille Book Reader using Raspberry Pi

The aim of this research paper is to understand the braille system and read the book for visually impaired person without any difficulty. Braille system is used by the people who are visually impaired. Braille system consist six raised dots in each cell and each cell represent one letter in English alphabet. In this undertaking we are using KNN algorithm for find the nearest neighbors from the base dot and calculate the distance between the dots. After finding the letter raspberry pi module convert that letter into speech form by using text to speech convertor. Camera module, voice output module is attached with the Raspberry pi module. We propose a Camera based framework integrated with Image processing algorithms, KNN algorithm and text to speech module.