Edge enhancement of G-banded human metaphase chromosomes using daubechies wavelets

• Main Authors: Carbonell, Christopher Anthony G., Rome, Michael :P., Pobre, Romeric F.
• Format: text
• Published: Animo Repository 2007
• Subjects: Human chromosomes; Image processing > Digital techniques; Electric filters (Wave-guide); Karyotypes; Mathematical analysis; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/13437
• Institution: De La Salle University

A two-dimensional Wavelet Transform (2DWT) and two-dimensional inverse Wavelet Transform (2DIWT) techniques are applied to enhance the information of a digitized image of G-banded metaphase spread of human chromosomes. Specimens imaged under a transmissive light microscope is captured by a Charged Coupled Device (CCD) camera and then digitized by a video frame grabber. The digitized image is then stored and processed thru PC that runs the 2DWT of the edge pass filter. Low phase band component of the transformed image is then set to zero to enhance the high phase band component of the extracted feature of the original image. A 2DIWT is implemented to restore the high phase band component of the original image. The high phase band provides a better edge contrast on the input image even under noisy conditions. The implementation of 2DWT and 2DIWT are programmed in C++ language using the Pyramidal algorithm.