Method: Magick::Image#equalize

Defined in:
ext/RMagick/rmimage.cpp

#equalize ⇒ Magick::Image

Apply a histogram equalization to the image.

Returns:



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# File 'ext/RMagick/rmimage.cpp', line 6385

VALUE
Image_equalize(VALUE self)
{
    Image *image, *new_image;
#if defined(IMAGEMAGICK_7)
    ExceptionInfo *exception;
#endif

    image = rm_check_destroyed(self);
    new_image = rm_clone_image(image);

#if defined(IMAGEMAGICK_7)
    exception = AcquireExceptionInfo();
    GVL_STRUCT_TYPE(EqualizeImage) args = { new_image, exception };
    CALL_FUNC_WITHOUT_GVL(GVL_FUNC(EqualizeImage), &args);
    rm_check_exception(exception, new_image, DestroyOnError);
    DestroyExceptionInfo(exception);
#else
    GVL_STRUCT_TYPE(EqualizeImage) args = { new_image };
    CALL_FUNC_WITHOUT_GVL(GVL_FUNC(EqualizeImage), &args);
    rm_check_image_exception(new_image, DestroyOnError);
#endif

    return rm_image_new(new_image);
}