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Applying geometric transformations leads to dark artifacts in combination with capture sharpening, fixes #5588

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This commit is contained in:
Ingo Weyrich
2019-12-30 15:27:17 +01:00
parent fbc7455ead
commit d17f71eb72
1 changed files with 132 additions and 8 deletions
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140
rtengine/iptransform.cc
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@@ -111,6 +111,31 @@ inline void interpolateTransformCubic(rtengine::Imagefloat* src, int xs, int ys,
g = vhadd(weight * gv);
b = vhadd(weight * bv);
}
inline void interpolateTransformCubicLog(rtengine::Imagefloat* src, int xs, int ys, float Dx, float Dy, float &r, float &g, float &b, float mul)
{
constexpr float A = -0.85f;
// Vertical
const float t1Vert = A * (Dy - Dy * Dy);
const float t2Vert = (3.f - 2.f * Dy) * Dy * Dy;
const vfloat w3Vert = F2V(t1Vert * Dy);
const vfloat w2Vert = F2V(t1Vert * Dy - t1Vert + t2Vert);
const vfloat w1Vert = F2V(1.f - (t1Vert * Dy) - t2Vert);
const vfloat w0Vert = F2V(t1Vert - (t1Vert * Dy));
const vfloat rv = (w0Vert * xlogf(LVFU(src->r(ys, xs))) + w1Vert * xlogf(LVFU(src->r(ys + 1, xs)))) + (w2Vert * xlogf(LVFU(src->r(ys + 2, xs))) + w3Vert * xlogf(LVFU(src->r(ys + 3, xs))));
const vfloat gv = (w0Vert * xlogf(LVFU(src->g(ys, xs))) + w1Vert * xlogf(LVFU(src->g(ys + 1, xs)))) + (w2Vert * xlogf(LVFU(src->g(ys + 2, xs))) + w3Vert * xlogf(LVFU(src->g(ys + 3, xs))));
const vfloat bv = (w0Vert * xlogf(LVFU(src->b(ys, xs))) + w1Vert * xlogf(LVFU(src->b(ys + 1, xs)))) + (w2Vert * xlogf(LVFU(src->b(ys + 2, xs))) + w3Vert * xlogf(LVFU(src->b(ys + 3, xs))));
// Horizontal
const float t1Hor = A * (Dx - Dx * Dx);
const float t2Hor = (3.f - 2.f * Dx) * Dx * Dx;
const vfloat weight = _mm_set_ps(t1Hor * Dx, t1Hor * Dx - t1Hor + t2Hor, 1.f - (t1Hor * Dx) - t2Hor, t1Hor - (t1Hor * Dx));
r = mul * xexpf(vhadd(weight * rv));
g = mul * xexpf(vhadd(weight * gv));
b = mul * xexpf(vhadd(weight * bv));
}
#else
inline void interpolateTransformCubic(rtengine::Imagefloat* src, int xs, int ys, float Dx, float Dy, float &r, float &g, float &b, float mul)
{
@@ -143,6 +168,38 @@ inline void interpolateTransformCubic(rtengine::Imagefloat* src, int xs, int ys,
g = mul * (gv[0] * w0Hor + gv[1] * w1Hor + gv[2] * w2Hor + gv[3] * w3Hor);
b = mul * (bv[0] * w0Hor + bv[1] * w1Hor + bv[2] * w2Hor + bv[3] * w3Hor);
}
inline void interpolateTransformCubicLog(rtengine::Imagefloat* src, int xs, int ys, float Dx, float Dy, float &r, float &g, float &b, float mul)
{
constexpr float A = -0.85f;
// Vertical
const float t1Vert = A * (Dy - Dy * Dy);
const float t2Vert = (3.f - 2.f * Dy) * Dy * Dy;
const float w3Vert = t1Vert * Dy;
const float w2Vert = t1Vert * Dy - t1Vert + t2Vert;
const float w1Vert = 1.f - (t1Vert * Dy) - t2Vert;
const float w0Vert = t1Vert - (t1Vert * Dy);
float rv[4], gv[4], bv[4];
for (int i = 0; i < 4; ++i) {
rv[i] = w0Vert * xlogf(src->r(ys, xs + i)) + w1Vert * xlogf(src->r(ys + 1, xs + i)) + w2Vert * xlogf(src->r(ys + 2, xs + i)) + w3Vert * xlogf(src->r(ys + 3, xs + i));
gv[i] = w0Vert * xlogf(src->g(ys, xs + i)) + w1Vert * xlogf(src->g(ys + 1, xs + i)) + w2Vert * xlogf(src->g(ys + 2, xs + i)) + w3Vert * xlogf(src->g(ys + 3, xs + i));
bv[i] = w0Vert * xlogf(src->b(ys, xs + i)) + w1Vert * xlogf(src->b(ys + 1, xs + i)) + w2Vert * xlogf(src->b(ys + 2, xs + i)) + w3Vert * xlogf(src->b(ys + 3, xs + i));
}
// Horizontal
const float t1Hor = A * (Dx - Dx * Dx);
const float t2Hor = (3.f - 2.f * Dx) * Dx * Dx;
const float w3Hor = t1Hor * Dx;
const float w2Hor = t1Hor * Dx - t1Hor + t2Hor;
const float w1Hor = 1.f - (t1Hor * Dx) - t2Hor;
const float w0Hor = t1Hor - (t1Hor * Dx);
r = mul * xexpf(rv[0] * w0Hor + rv[1] * w1Hor + rv[2] * w2Hor + rv[3] * w3Hor);
g = mul * xexpf(gv[0] * w0Hor + gv[1] * w1Hor + gv[2] * w2Hor + gv[3] * w3Hor);
b = mul * xexpf(bv[0] * w0Hor + bv[1] * w1Hor + bv[2] * w2Hor + bv[3] * w3Hor);
}
#endif
#ifdef __SSE2__
inline void interpolateTransformChannelsCubic(const float* const* src, int xs, int ys, float Dx, float Dy, float& dest, float mul)
@@ -165,6 +222,27 @@ inline void interpolateTransformChannelsCubic(const float* const* src, int xs, i
const vfloat weight = _mm_set_ps(t1Hor * Dx, t1Hor * Dx - t1Hor + t2Hor, 1.f - (t1Hor * Dx) - t2Hor, t1Hor - (t1Hor * Dx));
dest = mul * vhadd(weight * cv);
}
inline void interpolateTransformChannelsCubicLog(const float* const* src, int xs, int ys, float Dx, float Dy, float& dest, float mul)
{
constexpr float A = -0.85f;
// Vertical
const float t1Vert = A * (Dy - Dy * Dy);
const float t2Vert = (3.f - 2.f * Dy) * Dy * Dy;
const vfloat w3Vert = F2V(t1Vert * Dy);
const vfloat w2Vert = F2V(t1Vert * Dy - t1Vert + t2Vert);
const vfloat w1Vert = F2V(1.f - (t1Vert * Dy) - t2Vert);
const vfloat w0Vert = F2V(t1Vert - (t1Vert * Dy));
const vfloat cv = (w0Vert * xlogf(LVFU(src[ys][xs])) + w1Vert * xlogf(LVFU(src[ys + 1][xs]))) + (w2Vert * xlogf(LVFU(src[ys + 2][xs])) + w3Vert * xlogf(LVFU(src[ys + 3][xs])));
// Horizontal
const float t1Hor = A * (Dx - Dx * Dx);
const float t2Hor = (3.f - 2.f * Dx) * Dx * Dx;
const vfloat weight = _mm_set_ps(t1Hor * Dx, t1Hor * Dx - t1Hor + t2Hor, 1.f - (t1Hor * Dx) - t2Hor, t1Hor - (t1Hor * Dx));
dest = mul * xexpf(vhadd(weight * cv));
}
#else
inline void interpolateTransformChannelsCubic(const float* const* src, int xs, int ys, float Dx, float Dy, float& dest, float mul)
{
@@ -193,6 +271,34 @@ inline void interpolateTransformChannelsCubic(const float* const* src, int xs, i
dest = mul * (cv[0] * w0Hor + cv[1] * w1Hor + cv[2] * w2Hor + cv[3] * w3Hor);
}
inline void interpolateTransformChannelsCubicLog(const float* const* src, int xs, int ys, float Dx, float Dy, float& dest, float mul)
{
constexpr float A = -0.85f;
// Vertical
const float t1Vert = A * (Dy - Dy * Dy);
const float t2Vert = (3.f - 2.f * Dy) * Dy * Dy;
const float w3Vert = t1Vert * Dy;
const float w2Vert = t1Vert * Dy - t1Vert + t2Vert;
const float w1Vert = 1.f - (t1Vert * Dy) - t2Vert;
const float w0Vert = t1Vert - (t1Vert * Dy);
float cv[4];
for (int i = 0; i < 4; ++i) {
cv[i] = w0Vert * xlogf(src[ys][xs + i]) + w1Vert * xlogf(src[ys + 1][xs + i]) + w2Vert * xlogf(src[ys + 2][xs + i]) + w3Vert * xlogf(src[ys + 3][xs + i]);
}
// Horizontal
const float t1Hor = A * (Dx - Dx * Dx);
const float t2Hor = (3.f - 2.f * Dx) * Dx * Dx;
const float w3Hor = t1Hor * Dx;
const float w2Hor = t1Hor * Dx - t1Hor + t2Hor;
const float w1Hor = 1.f - (t1Hor * Dx) - t2Hor;
const float w0Hor = t1Hor - (t1Hor * Dx);
dest = mul * xexpf(cv[0] * w0Hor + cv[1] * w1Hor + cv[2] * w2Hor + cv[3] * w3Hor);
}
#endif
}
@@ -922,6 +1028,7 @@ void ImProcFunctions::transformGeneral(bool highQuality, Imagefloat *original, I
const double ascale = params->commonTrans.autofill ? getTransformAutoFill(oW, oH, pLCPMap) : 1.0;
const bool darkening = (params->vignetting.amount <= 0.0);
const bool useLog = params->pdsharpening.enabled;
const double centerFactorx = cx - w2;
const double centerFactory = cy - h2;
@@ -1011,14 +1118,26 @@ void ImProcFunctions::transformGeneral(bool highQuality, Imagefloat *original, I
if (yc > 0 && yc < original->getHeight() - 2 && xc > 0 && xc < original->getWidth() - 2) {
// all interpolation pixels inside image
if (enableCA) {
interpolateTransformChannelsCubic(chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], vignmul);
} else if (!highQuality) {
transformed->r(y, x) = vignmul * (original->r(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->r(yc, xc + 1) * Dx * (1.0 - Dy) + original->r(yc + 1, xc) * (1.0 - Dx) * Dy + original->r(yc + 1, xc + 1) * Dx * Dy);
transformed->g(y, x) = vignmul * (original->g(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->g(yc, xc + 1) * Dx * (1.0 - Dy) + original->g(yc + 1, xc) * (1.0 - Dx) * Dy + original->g(yc + 1, xc + 1) * Dx * Dy);
transformed->b(y, x) = vignmul * (original->b(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->b(yc, xc + 1) * Dx * (1.0 - Dy) + original->b(yc + 1, xc) * (1.0 - Dx) * Dy + original->b(yc + 1, xc + 1) * Dx * Dy);
if (!useLog) {
if (enableCA) {
interpolateTransformChannelsCubic(chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], vignmul);
} else if (!highQuality) {
transformed->r(y, x) = vignmul * (original->r(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->r(yc, xc + 1) * Dx * (1.0 - Dy) + original->r(yc + 1, xc) * (1.0 - Dx) * Dy + original->r(yc + 1, xc + 1) * Dx * Dy);
transformed->g(y, x) = vignmul * (original->g(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->g(yc, xc + 1) * Dx * (1.0 - Dy) + original->g(yc + 1, xc) * (1.0 - Dx) * Dy + original->g(yc + 1, xc + 1) * Dx * Dy);
transformed->b(y, x) = vignmul * (original->b(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->b(yc, xc + 1) * Dx * (1.0 - Dy) + original->b(yc + 1, xc) * (1.0 - Dx) * Dy + original->b(yc + 1, xc + 1) * Dx * Dy);
} else {
interpolateTransformCubic(original, xc - 1, yc - 1, Dx, Dy, transformed->r(y, x), transformed->g(y, x), transformed->b(y, x), vignmul);
}
} else {
interpolateTransformCubic(original, xc - 1, yc - 1, Dx, Dy, transformed->r(y, x), transformed->g(y, x), transformed->b(y, x), vignmul);
if (enableCA) {
interpolateTransformChannelsCubicLog(chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], vignmul);
} else if (!highQuality) {
transformed->r(y, x) = vignmul * (original->r(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->r(yc, xc + 1) * Dx * (1.0 - Dy) + original->r(yc + 1, xc) * (1.0 - Dx) * Dy + original->r(yc + 1, xc + 1) * Dx * Dy);
transformed->g(y, x) = vignmul * (original->g(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->g(yc, xc + 1) * Dx * (1.0 - Dy) + original->g(yc + 1, xc) * (1.0 - Dx) * Dy + original->g(yc + 1, xc + 1) * Dx * Dy);
transformed->b(y, x) = vignmul * (original->b(yc, xc) * (1.0 - Dx) * (1.0 - Dy) + original->b(yc, xc + 1) * Dx * (1.0 - Dy) + original->b(yc + 1, xc) * (1.0 - Dx) * Dy + original->b(yc + 1, xc + 1) * Dx * Dy);
} else {
interpolateTransformCubicLog(original, xc - 1, yc - 1, Dx, Dy, transformed->r(y, x), transformed->g(y, x), transformed->b(y, x), vignmul);
}
}
} else {
// edge pixels
@@ -1054,6 +1173,7 @@ void ImProcFunctions::transformGeneral(bool highQuality, Imagefloat *original, I
void ImProcFunctions::transformLCPCAOnly(Imagefloat *original, Imagefloat *transformed, int cx, int cy, const LensCorrection *pLCPMap)
{
assert(pLCPMap && params->lensProf.useCA && pLCPMap->isCACorrectionAvailable());
const bool useLog = params->pdsharpening.enabled;
float** chOrig[3];
chOrig[0] = original->r.ptrs;
@@ -1089,7 +1209,11 @@ void ImProcFunctions::transformLCPCAOnly(Imagefloat *original, Imagefloat *trans
// multiplier for vignetting correction
if (yc > 0 && yc < original->getHeight() - 2 && xc > 0 && xc < original->getWidth() - 2) {
// all interpolation pixels inside image
interpolateTransformChannelsCubic (chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], 1.0);
if (!useLog) {
interpolateTransformChannelsCubic(chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], 1.0);
} else {
interpolateTransformChannelsCubicLog(chOrig[c], xc - 1, yc - 1, Dx, Dy, chTrans[c][y][x], 1.0);
}
} else {
// edge pixels
int y1 = LIM (yc, 0, original->getHeight() - 1);