function-Resize-ChocoImage.ps1
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function Resize-ChocoImage { [CmdletBinding()] param ( # Image File Path [Parameter(Mandatory=$true,ValueFromPipeline)] [ValidateScript({Test-Path $_})] [String]$FilePath, # New Height [Parameter(Mandatory=$false)] [ValidateRange(1,512)] [Int] $Height = 256, # New Width [Parameter(Mandatory=$false)] [ValidateRange(1,512)] [Int] $Width = 256 ) function Resize-ToBitmap { param ( # Image Object [Parameter(Mandatory)] [System.Drawing.Image]$ImageObject, # New Height [Parameter(Mandatory)] [ValidateRange(1,512)] [Int] $Height, # New Width [Parameter(Mandatory)] [ValidateRange(1,512)] [Int] $Width ) try { $bitMapObj = [System.Drawing.Bitmap]::new($Height,$Width) [System.Drawing.Graphics]::FromImage($bitMapObj).DrawImage($ImageObject,0,0,$Width,$Height) return ([System.Drawing.Bitmap]::new($bitMapObj)) } catch [System.Exception] { throw "Could not resize Image Object: $($error[0].Exception.Message)" } } function Save-ToTemp { param ( # Bitmap Object [Parameter(Mandatory,ValueFromPipeline)] [System.Drawing.Bitmap] $BitmapObject ) try { $tempFile = [System.IO.Path]::GetTempFileName() Write-Verbose "Saving Bitmap Object to: $tempFile" $BitmapObject.Save($tempFile) $BitmapObject.Dispose() } catch [System.Exception] { throw "Could not save Image File: $($error[0].Exception.Message)" } return $tempFile } try { Write-Verbose "Resizing Image" } catch [System.Exception] { throw "Could not resize image: $($error[0].Exception.Message)" } $memoryByteArr = [System.IO.File]::ReadAllBytes($FilePath) $stream = [System.IO.MemoryStream]::new($memoryByteArr) $imageObject = [System.Drawing.Image]::FromStream($stream) #$tempFile = Resize-ToBitmap -ImageObject ([System.Drawing.Image]::FromFile($FilePath)) -Width $Width -Height $Height | Save-ToTemp $tempFile = Resize-ToBitmap -ImageObject $imageObject -Width $Width -Height $Height | Save-ToTemp try { Write-Verbose "Overwriting original file: $FilePath" Remove-Item $FilePath -Force -ErrorAction Stop Move-Item $tempFile -Destination $FilePath -ErrorAction Stop } catch { throw "Could not overwrite original file: $($error[0].Exception.Message)" } return (get-item $FilePath) } |