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improve qimage conversion

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This commit is contained in:
Massimiliano Corsini maxcorsini 2007-01-22 16:35:10 +00:00
parent 57c6c41762
commit 8e53cfeda9
2 changed files with 27 additions and 13 deletions
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12
src/meshlabplugins/epoch_io/scalar_image.cpp
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@ -178,18 +178,6 @@ ScalarImage<unsigned char>::ScalarImage(QImage img)
}
template <>
QImage ScalarImage<unsigned char>::convertToQImage()
{
QImage img(w,h,QImage::Format_RGB32);
for(int x=0;x<w;++x)
for(int y=0;y<h;++y){
unsigned char g=Val(x,y);
img.setPixel(x,y,qRgb(g,g,g));
}
return img;
}
template <class ScalarType>
bool ScalarImage<ScalarType>::Subsample(const int factor, ScalarImage<ScalarType> &fli)
{

28
src/meshlabplugins/epoch_io/scalar_image.h
View File

@ -19,7 +19,33 @@ public:
return v[y*w+x];
};
QImage convertToQImage();
inline QImage convertToQImage()
{
QImage img(w,h,QImage::Format_RGB32);
float max = 0.0f;
float min = Val(0,0);
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
if (Val(x, y) < min)
min = Val(x, y);
if (Val(x, y) > max)
max = Val(x, y);
}
float scale = 1.0f / max;
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
float value = (Val(x, y) - min) * scale;
value *= 255.0f;
img.setPixel(x,y,qRgb(value,value,value));
}
return img;
}
ScalarImage(QImage img);
ScalarImage(){};
bool Subsample(const int factor, ScalarImage<ScalarType> &fli);