About this document
Text Extraction via Wavelet Transform by Gaurav Goyal is a document available to read on EtoBox.
1) The document discusses a methodology for extracting text from images using discrete wavelet transform (DWT). 2) It describes preprocessing color images, applying 2D DWT to decompose images into subbands, and using the detail subbands to detect text edges using Sobel edge detection. 3) Morphological operations and thresholding are then applied to the edge map to isolate text for extraction.
- Author
- Gaurav Goyal
- Language
- EN