Question

我正在编写一个脚本以批量删除.gif文件的透明度。结果必须仍然是.gif格式。

尝试转换为.jpeg并返回，但未删除透明层。脚本如下所示。还尝试了色深，但是没有用。怎么做？

重新格式化了脚本，以减少帖子中的空间。

function ConvertImage{
    Param (
        [string]$path,
        [string]$inputFormat,
        [string]$outputFormat,
        [bool]$newName
    )

    if (Test-Path $path) {
        [Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
        $codec = [Drawing.Imaging.ImageCodecInfo]::GetImageEncoders() |
                 Where-Object { $_.FormatDescription -eq "$outputFormat" }  
        $ep = New-Object Drawing.Imaging.EncoderParameters 
        $ep.Param[0] = New-Object Drawing.Imaging.EncoderParameter ([System.Drawing.Imaging.Encoder]::Quality, [long]100)
        foreach ($file in (ls "$path\*.$inputFormat")) {
            $convertfile = New-Object System.Drawing.Bitmap($file.Fullname)
            if ($newName) {
                [string]$newName = $file.DirectoryName + "\New-" + $file.Name
                $newfilname = ($newName -replace "([^.]).$inputFormat",'$1') + ".$outputFormat"
            } else {
                $newfilname = ($file.FullName -replace "([^.]).$inputFormat",'$1') + ".$outputFormat" 
            }  
            $convertfile.Save($newfilname, $codec, $ep)
            $newfilname #showing which file is processed
            Start-Sleep -Milliseconds 200 #slowing down a bit
        } 
    } else {
        Write-Host "path not found."
    }
}
ConvertImage -path "C:\Images" -inputFormat "gif" -outputFormat "jpeg" -newName $true
Read-Host "First conversion complete. Continue"
ConvertImage -path "C:\Images" -inputFormat "jpeg" -outputFormat "gif" -newName $false

通过PowerShell 5从GIF图像中删除透明度

0 个答案: