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| author | Tomas Farago <sensej007@email.cz> | 2019-07-31 17:54:31 +0200 |
|---|---|---|
| committer | Tomas Farago <sensej007@email.cz> | 2020-02-05 10:16:26 +0100 |
| commit | b0166f3f68323add5d405b10b8468441b8ab0df9 (patch) | |
| tree | e2b65fa55b0ae0a357e01e0e99ca6fc537b7bf0e | |
| parent | 2009b00e1d086e6ccef2d3fab84da2eba7b41c60 (diff) | |
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NLM: use fmax (0.0f, value) only at the end
| -rw-r--r-- | src/kernels/nlm.cl | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/kernels/nlm.cl b/src/kernels/nlm.cl index d2f6b0f..a094f34 100644 --- a/src/kernels/nlm.cl +++ b/src/kernels/nlm.cl @@ -44,16 +44,14 @@ compute_dist (read_only image2d_t input, tmp = read_imagef (input, sampler, (float2) ((p.x + i) / width, (p.y + j) / height)).x - read_imagef (input, sampler, (float2) ((q.x + i) / width, (q.y + j) / height)).x; if (window_coeffs) { - /* Use gaussian window. - * Cutoff negative numbers which would cause large weights. */ - dist += fmax (0.0f, window_coeffs[(j + radius) * wsize + (i + radius)] * (tmp * tmp - 2 * variance)); + dist += window_coeffs[(j + radius) * wsize + (i + radius)] * (tmp * tmp - 2 * variance); } else { - dist += fmax (0.0f, tmp * tmp - 2 * variance); + dist += tmp * tmp - 2 * variance; } } } - return dist * coeff; + return fmax (0.0f, dist) * coeff; } kernel void |