Similarity or Relation between Walsh Hadamard Transform and Slant Transform

1. What is the difference between Walsh and Hadamard transform?
2. What is the use of Hadamard transform?
3. Which values are generated by Walsh Hadamard transform?
4. Why Hadamard transform is suitable for signal and image transform?

What is the difference between Walsh and Hadamard transform?

In the generalized form Walsh transform and the Walsh Hadamard transform are different so far as the kernel composition is concerned as they are ordered differently. The generalized Walsh kernel is asymmetric, whereas the generalized Hadamard kernel is symmetric.

What is the use of Hadamard transform?

The Walsh-Hadamard transform is used in a number of applications, such as image processing, speech processing, filtering, and power spectrum analysis. It is very useful for reducing bandwidth storage requirements and spread-spectrum analysis.

Which values are generated by Walsh Hadamard transform?

The transformation has no multipliers and is real because the amplitude of Walsh (or Hadamard) functions has only two values, +1 or -1.

Why Hadamard transform is suitable for signal and image transform?

Walsh-Hadamard transform is suitable for compression of ECG signals because it offers advantages such as fast computation of Walsh-Hadamard coefficients, less required storage space since it suffices to store only those sequency coefficients with large magnitudes, and fast signal reconstruction.