Working with UCHAR data in the [0, 255] range isn't the most intuitive way of working with color values. It might be more practical (though more memory consuming) to interface with normalized [0.0f, 1.0f] floating point data. Not to mention applying series of operations (blending etc.) on low-range data can cause severe artifacting.

Working with UCHAR data in the [0, 255] range isn't the most intuitive way of working with color values. It might be more practical (though more memory consuming) to interface with normalized [0.0f, 1.0f] floating point data.