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Transcript
High-pass filter kernel Single kernel LSF Frequency response highhigh-pass filter 1 Modulation Highpass LSF + - - Difference 0.8 0.6 0.4 0.2 Lowpass LSF 0 -0.2 0 0.2 0.4 0.6 0.8 1 1.2 Frequency Units of 1/â 1/âx 2D high pass filter kernel â¢Convolve ânormalizedâ filter kernel with image Input -1 -1 -1 -1 9 -1 -1 -1 -1 ** Profile before Output 1 1 1 10 10 10 1 1 -26 35 10 10 1 1 1 10 10 10 1 1 -26 35 10 10 1 1 1 10 10 10 1 1 -26 35 10 10 1 1 1 10 10 10 1 1 -26 35 10 10 1 1 1 10 10 10 1 1 -26 35 10 10 1 1 1 10 10 10 1 1 -26 35 10 10 Profile after 45
