delete_duplicate_images.ps1

Get-ChildItem -Recurse | Where-Object { $_.PSIsContainer } | ForEach-Object {

    if (Test-Path $_.FullName) {
        try {
            Set-Location -LiteralPath $_.FullName
            $files = Get-ChildItem -Path ./* -include *.jpg | Where-Object { $_.Length -gt 0 }

            if ($files.Count -gt 1) {

                $groups = $files | Group-Object { $_.Length }
                $groups | ForEach-Object {
                    $group = $_.Group
                    if ($group.Count -gt 1) {

                        Write-Host "Found a group of files with the same file size"
                        $filesToKeep = @()
                        $group | ForEach-Object {
                            $file = $_
                            if ($filesToKeep.Count -eq 0) {
                                Write-Host "Adding first file to the files to keep list: $file.Name"
                                $filesToKeep += $file
                            }
                            else {
                                $resolution = & "identify" "-format" "%wx%h" $file.FullName
                                $duplicate = $filesToKeep | Where-Object {
                                    $_.Length -eq $file.Length -and
                                    $_.LastWriteTime -eq $file.LastWriteTime -and
                                    (
                                        & "identify" "-format" "%wx%h" $_.FullName
                                    ) -eq $resolution
                                }
                                if ($duplicate) {
                                    Write-Host "Found duplicate file: $file.Name, deleting it"
                                    #$file.Delete()
                                }
                                else {
                                    Write-Host "Adding file to the files to keep list: $file.Name"
                                    $filesToKeep += $file
                                }
                            }
                        }
                    }
                }
            }
            Set-Location '..'
        }
        catch {
            Write-Host "Error occurred: $_"
        }
    }
    else {
        Write-Host "Directory does not exist: $($_.FullName)"
    }

}