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25% speedup for raw false colour suppression

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This commit is contained in:
heckflosse
2016-03-05 18:50:26 +01:00
parent 72283f867d
commit 8619fd8a0b
3 changed files with 17 additions and 32 deletions
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16
rtengine/rawimagesource_i.h
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@@ -27,21 +27,21 @@
namespace rtengine
{
inline void RawImageSource::convert_row_to_YIQ (float* r, float* g, float* b, float* Y, float* I, float* Q, int W)
inline void RawImageSource::convert_row_to_YIQ (const float* const r, const float* const g, const float* const b, float* Y, float* I, float* Q, const int W)
{
for (int j = 0; j < W; j++) {
Y[j] = .299 * r[j] + .587 * g[j] + .114 * b[j];
I[j] = .596 * r[j] - .275 * g[j] - .321 * b[j];
Q[j] = .212 * r[j] - .523 * g[j] + .311 * b[j];
Y[j] = .299f * r[j] + .587f * g[j] + .114f * b[j];
I[j] = .596f * r[j] - .275f * g[j] - .321f * b[j];
Q[j] = .212f * r[j] - .523f * g[j] + .311f * b[j];
}
}
inline void RawImageSource::convert_row_to_RGB (float* r, float* g, float* b, float* Y, float* I, float* Q, int W)
inline void RawImageSource::convert_row_to_RGB (float* r, float* g, float* b, const float* const Y, const float* const I, const float* const Q, const int W)
{
for (int j = 1; j < W - 1; j++) {
r[j] = Y[j] + 0.956 * I[j] + 0.621 * Q[j];
g[j] = Y[j] - 0.272 * I[j] - 0.647 * Q[j];
b[j] = Y[j] - 1.105 * I[j] + 1.702 * Q[j];
r[j] = Y[j] + 0.956f * I[j] + 0.621f * Q[j];
g[j] = Y[j] - 0.272f * I[j] - 0.647f * Q[j];
b[j] = Y[j] - 1.105f * I[j] + 1.702f * Q[j];
}
}