Image processing

These classes mostly take in an image (or images) and generate a processed image or some other object. Of those classes that take in a single object and generate a single object , many fall into the data processing class category, and therefore all use the same interface. (They can be readily identified because they all inherit DPProcessC).

Templated image operators

• For those image processing classes that are templated on the type of pixel, it does not follow that any data type can be used for the pixel class: it depends on whether the pixel operators used by the processing class are available in the chosen pixel class.
• It is advisable to avoid templating on 8-bit and /or unsigned data types. 8-bit types do not have enough headroom for repeated arithmetic operations (such as multiply/accumulate). Unsigned data types may work, but if a combination of subtraction and division is encountered, the algorithm will usually fail.
• Templating on floating point types such as double or RGBPointC is generally safe.

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