int byte( int $b)
void colorNoise_fun( &$r, &$g, &$b, $amount, int $r, int $g, int $b, int $value)
WideImage_Image execute( WideImage_Image $image, float $amount, const $type, float $threshold)
WideImage_Image filter( WideImage_Image $image, str $function, int $value)
void monoNoise_fun( &$r, &$g, &$b, $amount, int $r, int $g, int $b, int $value)
void saltPepperNoise_fun( &$r, &$g, &$b, $amount, int $r, int $g, int $b, int $value)