Imfilter

Performance of MATLAB's 'conv2()' vs. 'imfilter()'

Performance of MATLAB's 'conv2()' vs. 'imfilter()'
  1. What is Imfilter Matlab?
  2. How does filter2 work Matlab?

What is Imfilter Matlab?

The imfilter function computes the value of each output pixel using double-precision, floating-point arithmetic. If the result exceeds the range of the data type, then imfilter truncates the result to the allowed range of the data type. If it is an integer data type, then imfilter rounds fractional values.

How does filter2 work Matlab?

The filter2 function filters data by taking the 2-D convolution of the input X and the coefficient matrix H rotated 180 degrees. Specifically, filter2(H,X,shape) is equivalent to conv2(X,rot90(H,2),shape) .

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