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Add CIELAB lightness to waveform

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This commit is contained in:
Lawrence Lee
2020-08-05 11:57:34 -07:00
parent ba57a6c680
commit 9382306fed
7 changed files with 49 additions and 13 deletions
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8
rtengine/improccoordinator.cc
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@@ -1774,7 +1774,8 @@ void ImProcCoordinator::notifyHistogramChanged()
waveformWidth,
waveformRed.get(),
waveformGreen.get(),
waveformBlue.get()
waveformBlue.get(),
waveformLuma.get()
);
}
}
@@ -1905,18 +1906,22 @@ void ImProcCoordinator::updateWaveforms()
waveformRed.reset(new int[waveformWidth][256]);
waveformGreen.reset(new int[waveformWidth][256]);
waveformBlue.reset(new int[waveformWidth][256]);
waveformLuma.reset(new int[waveformWidth][256]);
}
int (*red)[256] = waveformRed.get();
int (*green)[256] = waveformGreen.get();
int (*blue)[256] = waveformBlue.get();
int (*luma)[256] = waveformLuma.get();
// Start with zero.
const int waveformSize = 256 * waveformWidth;
memset(waveformRed.get(), 0, waveformSize * sizeof(red[0][0]));
memset(waveformGreen.get(), 0, waveformSize * sizeof(green[0][0]));
memset(waveformBlue.get(), 0, waveformSize * sizeof(blue[0][0]));
memset(waveformLuma.get(), 0, waveformSize * sizeof(luma[0][0]));
constexpr float luma_factor = 255.f / 32768.f;
for (int i = y1; i < y2; i++) {
int ofs = (i * pW + x1) * 3;
@@ -1924,6 +1929,7 @@ void ImProcCoordinator::updateWaveforms()
red[j][workimg->data[ofs++]]++;
green[j][workimg->data[ofs++]]++;
blue[j][workimg->data[ofs++]]++;
luma[j][(int)(nprevl->L[i][j + x1] * luma_factor)]++;
}
}