         //
         destinationVariability.addUpdateObserver({ (histogram) -> Void in
             dispatch_async(dispatch_get_main_queue(), { () -> Void in
-                self.variabilityDestinationLabel.stringValue = String(format: "%2.3f/%2.3f", histogram.variability(), histogram.averageEntropy())
+                self.variabilityDestinationLabel.stringValue = String(format: "%2.3f", histogram.variability())
                 let er = histogram.entropy(channel: .X)
                 let eg = histogram.entropy(channel: .Y)
                 let eb = histogram.entropy(channel: .Z)

            self.contrast.adjustment.maximum = rangeSolver.maximum
            
            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                self.variabilitySourceLabel.stringValue = String(format: "%2.3f/%2.3f", histogram.variability(), histogram.averageEntropy())
                let er = histogram.entropy(channel: .X)
                let eg = histogram.entropy(channel: .Y)
                let eb = histogram.entropy(channel: .Z)

        
        let font  = NSFont(name: "Courier", size: 12)
        let fontS = NSFont(name: "Courier", size: 10)
        let fontB = NSFont(name: "Courier", size: 20)
        
        variabilitySourceLabel.font = fontB
        variabilityDestinationLabel.font = fontB
        entropySourceLabel.font = fontS
        entropyDestinationLabel.font = fontS
        
