Silverlight WCF

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WCF

Silverlight

I am getting the above error when trying to insert a image in to database
My ServiceReference.ClientConfig file is :

<binding name="BasicHttpBinding_IPickerWCF" maxBufferSize="2147483647"
     maxReceivedMessageSize="2147483647">
     <security mode="None" />
    </binding>

<endpoint address="http://localhost:3178/ActionsWCF.svc" binding="basicHttpBinding"
    bindingConfiguration="BasicHttpBinding_IActionsWCF" contract="ActionsWCF.IActionsWCF"
    name="BasicHttpBinding_IActionsWCF" />
My WebConfig is
<system.serviceModel>
        <diagnostics performanceCounters="Default">
  <messageLogging logEntireMessage="true" logMalformedMessages="true"
  logMessagesAtServiceLevel="false" logMessagesAtTransportLevel="false"
  maxMessagesToLog="100000" maxSizeOfMessageToLog="2621440" />
 </diagnostics>
 <behaviors>
  <serviceBehaviors>
  <behavior name="WCFServiceBehaviour">
   <serviceMetadata httpGetEnabled="true" />
   <serviceDebug includeExceptionDetailInFaults="true" />
   <dataContractSerializer maxItemsInObjectGraph="2147483647" />
  </behavior>
  </serviceBehaviors>
 </behaviors>
        <!--<serviceHostingEnvironment multipleSiteBindingsEnabled="true"/>-->
    </system.serviceModel>

It works fine for images of size 3kb but it is not working for larger images.

Please help me.
Thanks in advance