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Classes | Functions

Multiplying unsigned channel values of the same type. Performs scaled multiplication result = a * b / max_value. More...

Classes

struct  channel_multiplier_unsigned< ChannelValue >
 This is the default implementation. Performance specializatons are provided. More...
 
struct  channel_multiplier_unsigned< uint8_t >
 Specialization of channel_multiply for 8-bit unsigned channels. More...
 
struct  channel_multiplier_unsigned< uint16_t >
 Specialization of channel_multiply for 16-bit unsigned channels. More...
 
struct  channel_multiplier_unsigned< float32_t >
 Specialization of channel_multiply for float 0..1 channels. More...
 
struct  channel_multiplier< ChannelValue >
 A function object to multiply two channels. result = a * b / max_value. More...
 

Functions

template<typename Channel >
channel_traits< Channel >::value_type channel_multiply (Channel a, Channel b)
 A function multiplying two channels. result = a * b / max_value.
 

Detailed Description

Multiplying unsigned channel values of the same type. Performs scaled multiplication result = a * b / max_value.

Example:

uint8_t x=128;
uint8_t y=128;
uint8_t mul = channel_multiply(x,y);
assert(mul == 64); // 64 = 128 * 128 / 255