Discrete Wavelets on Edges
Alexandre Chapiro, Tássio Knop de Castro, Virgínia Fernandes Mota, Eder de Almeida Perez, Marcelo Bernardes, Wilhelm Passarella · InTech eBooks · 2011
Human life is closely tied to signals. These signals are present everywhere listening to music is possible because of audible sound signals traveling through air, reading a book is feasible due to light waves bouncing off objects and interpreted by our bodies as visual images, electromagnetic waves allow us to communicate through the radio or wireless Internet. Signal Processing is an area of electrical engineering and applied mathematics that deals with either continuous or discrete signals. Particularly, Image Processing is any kind of Signal Processing where the input is an image, such as a digital photograph. The underlying essence of Image Processing lies in understanding the concept of what is an image and studying techniques for the manipulation of images with the use of a computer. While these explanations may seem quite generic, the importance of Image Processing in the modern world is undeniable and progress in this field is very desirable.