Question:
Wavelet transform decomposes an image into _______ number of components:
Wavelet transform decomposes an image into _______ number of components:
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Wavelet decomposition divides an image into four sub-bands: LL, LH, HL, and HH, which are used for image compression and feature extraction.
Updated On: Feb 27, 2025
- \(\text{2} \)
- \(\text{1} \)
- \(\text{4} \)
- \(\text{3} \)
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The Correct Option is C
Solution and Explanation
Step 1: Understanding wavelet transform. A wavelet transform is a mathematical technique that decomposes an image into different frequency components for analysis.
Step 2: Components of wavelet transform. Wavelet decomposition splits an image into four sub-bands:
- LL (Approximation sub-band): Low-frequency components.
- LH (Horizontal details sub-band): High-frequency in horizontal, low in vertical.
- HL (Vertical details sub-band): High-frequency in vertical, low in horizontal.
- HH (Diagonal details sub-band): High-frequency in both directions.
Step 3: Selecting the correct option. Since wavelet decomposition results in four components (LL, LH, HL, HH), the correct answer is c. 4.
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