Powershell convert image to BMP 16 bits

Question

I have a code to batch convert a folder of jpg files to BMP.
The code i have works ok, But it gets saved as BMP 24 bits..
I need it to convert it to BMP 16 bits

function ConvertImage{
$Origen="C:\jpg" #path to files
$Destino="C:\bmp" #path to files

if (Test-Path $Origen){

Load required assemblies and get object reference

[Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
foreach($file in (Get-ChildItem -Path "$Origen\*.jpg" -Exclude *-*)){
    $convertfile = new-object System.Drawing.Bitmap($file.Fullname)
    $newfilname = $Destino + '\' + $file.BaseName + '.bmp'
    $convertfile.Save($newfilname, "bmp")
    $file.Fullname
}  

}
else{
Write-Host "Path not found."
}
};ConvertImage -path $args[0]

Answer 1

You need to define the format using the PixelFormat system.drawing.imaging.pixelformat

Here's an example: how-to-save-a-bitmap-object-in-16bit