> I dont want to resample. I want to change the dpi, but I want to specify the
Ok, recent versions of ImageMagick does that automatically when you
specify units. The relevant code:
if ((*image)->units != units)
switch ((*image)->units)
{
case PixelsPerInchResolution:
{
if (units == PixelsPerCentimeterResolution)
{
(*image)->x_resolution/=2.54;
(*image)->y_resolution/=2.54;
}
break;
}
case PixelsPerCentimeterResolution:
{
if (units == PixelsPerInchResolution)
{
(*image)->x_resolution*=2.54;
(*image)->y_resolution*=2.54;
}
break;
}
default:
break;
}
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