Generic Image Library: channel_invert

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channel_invert
Algorithms and Utility Functions

Returns the inverse of a channel. result = max_value - x + min_value. More...

## Functions
template<typename Channel >
channel_traits< Channel > ::value_type | channel_invert (Channel x)
| Default implementation. Provide overloads for performance.

## Detailed Description

Returns the inverse of a channel. result = max_value - x + min_value.

Example:

// uint8_t == uint8_t == unsigned char
uint8_t x=255;
uint8_t inv = channel_invert(x);
assert(inv == 0);