SPE - Rename duplicated name

function renameDuplicateItem($id){
 $item = Get-Item -Path master: -ID $id
 Write-Output "Check item $($item.Name)"
 $index = 1
 Get-ChildItem -Path $item.Parent.Paths.FullPath | Where-Object{ $_.ID.Guid -ne $id.Guid -and $_.Name -eq $item.Name } | Foreach-Object{
 $newName = -Join($_.Name, " ", $index)
 Write-Host "$($_.Name) will be changed to $newName" 
 $_.Editing.BeginEdit()
 $_.Name = $newName
 $_.Editing.EndEdit()
 $index++
 }
}

Get-ChildItem -Path "master:/sitecore/media library/Project/" -Recurse | Foreach-Object{
 renameDuplicateItem $_.ID
}