Describe Wavelets. How are Two-Dimensional Wavelets Constructed? Wavelets are a type of multi-resolution image representation, similar to image pyramids but with several important enhancements. Unlike Gaussian or Laplacian pyramids that…
6. Mention some practical applications of image pyramids in computer vision and graphics. Answer: Image pyramids are a fundamental concept in computer vision and graphics, offering a multiscale representation of…
5. Explain why do we downsample images, and what role does decimation play in reducing image resolution effectively? Answer: Why Do We Downsample Images? Downsampling, or reducing the resolution of…
4. Explain is interpolation (upsample) in the context of image processing, and why is it important when increasing the resolution of an image? Answer: Interpolation is the process of estimating…
3. Describe Fourier transforms, Two-dimensional Fourier transforms (wiener filtering and Discrete cosine transform). Mention Applications. Answer: 1. Fourier Transforms Fourier Transform is a mathematical tool that transforms a spatial domain…
Prototype matching is a fundamental technique in pattern classification, where an unknown pattern is compared against a set of stored prototype patterns, and is assigned to the class of the…
1. Patterns in Image Classification In image pattern classification, patterns are grouped into two primary types: These patterns are used to classify and recognize different objects in digital images. 2.…
Chain Codes in Boundary Representation Chain codes are used to represent the boundary of an object in a digital image using a connected sequence of straight-line segments. These segments have…
Interpretation: This operation gives the set of all positions (z) where: Hence, a “hit” in the foreground and a “miss” in the background. 3. Figure Reference: Fig. 9.12
