Method: Magick::Image#add_noise

Defined in:
ext/RMagick/rmimage.c

#add_noise(noise) ⇒ Object

Add random noise to a copy of the image.

Ruby usage:

- @verbatim Image#add_noise(noise_type) @endverbatim

Parameters:

  • self —

    this object

  • noise —

    the noise

Returns:

  • a new image


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# File 'ext/RMagick/rmimage.c', line 407

VALUE
Image_add_noise(VALUE self, VALUE noise)
{
    Image *image, *new_image;
    NoiseType noise_type;
    ExceptionInfo exception;

    image = rm_check_destroyed(self);

    VALUE_TO_ENUM(noise, noise_type, NoiseType);

    GetExceptionInfo(&exception);
    new_image = AddNoiseImage(image, noise_type, &exception);
    rm_check_exception(&exception, new_image, DestroyOnError);

    (void) DestroyExceptionInfo(&exception);

    rm_ensure_result(new_image);

    return rm_image_new(new_image);
}