Object Hierarchy

    GObject
        VipsObject
            VipsOperation
                VipsConvolution
                VipsForeign
                    VipsForeignLoad
                    VipsForeignSave
                VipsHistogram
                    VipsHistUnary
            VipsImage
            VipsInterpolate
            VipsRegion
            VipsThreadState
    GBoxed
        VipsArea
        VipsArrayDouble
        VipsArrayInt
        VipsThing