liz/rawTherapee
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Whean read, 32 bits tiff image data are not scaled anymore

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So the highlights above the 1.0 upper limit will be clipped but colors
will be preserved. Fix #4379
This commit is contained in:
Hombre 2018-02-09 22:25:40 +01:00
parent 786b73b899
commit d7f7c06f10
2 changed files with 10 additions and 28 deletions
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15
rtengine/imagefloat.cc
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@ -57,36 +57,39 @@ void Imagefloat::setScanline (int row, unsigned char* buffer, int bps, float *mi
float* sbuffer = (float*) buffer;
for (int i = 0; i < width; i++) {
r(row, i) = sbuffer[ix];
r(row, i) = 65535.f * sbuffer[ix];
if (minValue) {
if (sbuffer[ix] < minValue[0]) {
minValue[0] = sbuffer[ix];
} else if (sbuffer[ix] > maxValue[0]) {
maxValue[0] = sbuffer[ix];
} ++ix;
}
}
++ix;
g(row, i) = sbuffer[ix];
g(row, i) = 65535.f * sbuffer[ix];
if (minValue) {
if (sbuffer[ix] < minValue[1]) {
minValue[1] = sbuffer[ix];
} else if (sbuffer[ix] > maxValue[1]) {
maxValue[1] = sbuffer[ix];
} ++ix;
}
}
++ix;
b(row, i) = sbuffer[ix];
b(row, i) = 65535.f * sbuffer[ix];
if (minValue) {
if (sbuffer[ix] < minValue[2]) {
minValue[2] = sbuffer[ix];
} else if (sbuffer[ix] > maxValue[2]) {
maxValue[2] = sbuffer[ix];
} ++ix;
}
}
++ix;
}
break;
}

21
rtengine/imageio.cc
View File

@ -835,7 +835,6 @@ int ImageIO::loadTIFF (Glib::ustring fname)
allocate (width, height);
float minValue[3] = {0.f, 0.f, 0.f}, maxValue[3] = {0.f, 0.f, 0.f};
unsigned char* linebuffer = new unsigned char[TIFFScanlineSize(in) * (samplesperpixel == 1 ? 3 : 1)];
for (int row = 0; row < height; row++) {
@ -861,33 +860,13 @@ int ImageIO::loadTIFF (Glib::ustring fname)
}
}
if (sampleFormat & (IIOSF_LOGLUV24 | IIOSF_LOGLUV32 | IIOSF_FLOAT)) {
setScanline (row, linebuffer, bitspersample, minValue, maxValue);
} else {
setScanline (row, linebuffer, bitspersample, nullptr, nullptr);
}
if (pl && !(row % 100)) {
pl->setProgress ((double)(row + 1) / height);
}
}
if (sampleFormat & (IIOSF_FLOAT | IIOSF_LOGLUV24 | IIOSF_LOGLUV32)) {
#ifdef _DEBUG
if (options.rtSettings.verbose)
printf("Normalizing \"%s\" image \"%s\" whose mini/maxi values are:\n Red: minimum value=%0.5f / maximum value=%0.5f\n Green: minimum value=%0.5f / maximum value=%0.5f\n Blue: minimum value=%0.5f / maximum value=%0.5f\n",
getType(), fname.c_str(),
minValue[0], maxValue[0], minValue[1],
maxValue[1], minValue[2], maxValue[2]
);
#endif
float minVal = rtengine::min(minValue[0], minValue[1], minValue[2]);
float maxVal = rtengine::max(maxValue[0], maxValue[1], maxValue[2]);
normalizeFloat(minVal, maxVal);
}
TIFFClose(in);
delete [] linebuffer;