void Conversions::ToColor(Image& Source, Image& Dest)
{
CheckSizeAndType(Source, Dest);
Check1Channel(Source);
switch (Dest.NbChannels())
{
case 1:
Copy(Source, Dest);
break;
case 2:
Kernel(to_2channels, Source, Dest, Source.Step(), Dest.Step());
break;
case 3:
Kernel(to_3channels, Source, Dest, Source.Step(), Dest.Step());
break;
case 4:
Kernel(to_4channels, Source, Dest, Source.Step(), Dest.Step());
break;
default:
throw cl::Error(CL_INVALID_ARG_VALUE, "Wrong ChannelNo in Conversions::SelectChannel() - allowed values : 1 to 4");
}
// select_channel1 does what we want
Kernel(select_channel1, Source, Dest);
}
void Conversions::ToGray(Image& Source, Image& Dest)
{
CheckSizeAndType(Source, Dest);
Check1Channel(Dest);
Kernel(to_gray, Source, Dest, Source.Step(), Dest.Step());
}
void Conversions::Copy4Cto3C(Image& Source, Image& Dest)
{
CheckSizeAndType(Source, Dest);
if (Source.NbChannels() != 4)
throw cl::Error(CL_INVALID_VALUE, "Source image must be 4 channels in Copy4Cto3C");
if (Dest.NbChannels() != 3)
throw cl::Error(CL_INVALID_VALUE, "Dest image must be 3 channels in Copy4Cto3C");
Kernel(copy4Cto3C, Source, Dest, Source.Step(), Dest.Step());
}
void Conversions::SelectChannel(Image& Source, Image& Dest, int ChannelNo)
{
CheckSizeAndType(Source, Dest);
Check1Channel(Dest);
switch (ChannelNo)
{
case 1:
Kernel(select_channel1, Source, Dest, Source.Step(), Dest.Step());
break;
case 2:
Kernel(select_channel2, Source, Dest, Source.Step(), Dest.Step());
break;
case 3:
Kernel(select_channel3, Source, Dest, Source.Step(), Dest.Step());
break;
case 4:
Kernel(select_channel4, Source, Dest, Source.Step(), Dest.Step());
break;
default:
throw cl::Error(CL_IMAGE_FORMAT_NOT_SUPPORTED, "Unsupported number of channels");
}
}
void CheckSimilarity(const ImageBase& Img1, const ImageBase& Img2)
{
CheckSizeAndType(Img1, Img2);
CheckSameNbChannels(Img1, Img2);
}
