[Insight-users] AddPixelAccessor set function confusion

[robert tamburo]

I'm confused with the set function of AddPixelAccessor. It subtracts a value
from the input rather than adding it.

Relevant code:
inline void Set( InternalType & output, const ExternalType & input ) const
    { output = static_cast<InternalType>( input - m_Value ); }

Shouldn't it add m_Value to the input? Or is there something else going on?

-Robert
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