imagick_unsharpmask

(PECL)

imagick_unsharpmask -- Sharpen image

Beskrivelse

bool imagick_unsharpmask ( resource image, float radius, float sigma, float amount, float threshold )

Advarsel

Denne funktion er på nuværende tidspunkt ikke dokumenteret; kun dens argumenter er til rådighed.

Parameterliste

image

Image handle

radius

Radius of the pixel neighborhood not counting the center pixel

sigma

Standard deviation of the Gaussian in pixels

amount

Percentage of the difference between the original and the blur image that is added back into the original

threshold

Threshold in pixels needed to apply the diffence amount

Returneringsværdier

Returnerer TRUE ved succes, FALSE ved fejl.