Este dilema se puede solucionar de diferentes formas, por lo tanto te mostramos la que para nosotros es la resolución más completa.
Ejemplo 1: imagen de cambio de tamaño de la función powershell
# https://gallery.technet.microsoft.com/scriptcenter/Resize-Image-A-PowerShell-3d26ef68
Ejemplo 2: Powershell de imagen de cambio de tamaño de función
# (Parameter: -Scale)# Mit diesem Parameter kann die Skalierung des Bildes in % angeben werdenfunction Resize-Image
<#
.SYNOPSIS
Resize-Image resizes an image file
.DESCRIPTION
This function uses the native .NET API to resize an image file, and optionally save it to a file or display it on the screen. You can specify a scale or a new resolution for the new image.
It supports the following image formats: BMP, GIF, JPEG, PNG, TIFF
.EXAMPLE
Resize-Image -InputFile "C:kitten.jpg" -Display
Resize the image by 50% and display it on the screen.
.EXAMPLE
Resize-Image -InputFile "C:kitten.jpg" -Width 200 -Height 400 -Display
Resize the image to a specific size and display it on the screen.
.EXAMPLE
Resize-Image -InputFile "C:kitten.jpg" -Scale 30 -OutputFile "C:kitten2.jpg"
Resize the image to 30% of its original size and save it to a new file.
#>
Param([Parameter(Mandatory=$true)][string]$InputFile, [string]$OutputFile, [int32]$Width, [int32]$Height, [int32]$Scale, [Switch]$Display)# Add System.Drawing assembly
Add-Type -AssemblyName System.Drawing
# Open image file$img=[System.Drawing.Image]::FromFile((Get-Item $InputFile))# Define new resolution
if($Width -gt 0)[int32]$new_width=$Width
elseif($Scale -gt 0)[int32]$new_width=$img.Width * ($Scale / 100)else[int32]$new_width=$img.Width / 2
if($Height -gt 0)[int32]$new_height=$Height
elseif($Scale -gt 0)[int32]$new_height=$img.Height * ($Scale / 100)else[int32]$new_height=$img.Height / 2# Create empty canvas for the new image$img2= New-Object System.Drawing.Bitmap($new_width, $new_height)# Draw new image on the empty canvas$graph=[System.Drawing.Graphics]::FromImage($img2)$graph.DrawImage($img, 0, 0, $new_width, $new_height)# Create window to display the new image
if($Display)
Add-Type -AssemblyName System.Windows.Forms
$win= New-Object Windows.Forms.Form
$box= New-Object Windows.Forms.PictureBox
$box.Width =$new_width$box.Height =$new_height$box.Image =$img2$win.Controls.Add($box)$win.AutoSize =$true$win.ShowDialog()# Save the image
if($OutputFile -ne "")$img2.Save($OutputFile);# Close Image File$img2.Dispose()$img.Dispose()
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