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https://github.com/fleschutz/PowerShell.git
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3.8 KiB
3.8 KiB
convert-image2ascii.ps1
convert-image2ascii.ps1
Parameters
[<CommonParameters>]
This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction,
WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
Script Content
<#
.SYNOPSIS
Converts images to ASCII art
.DESCRIPTION
This PowerShell script converts an image to ASCII art.
.EXAMPLE
Convert-ImageToAscii -InFile "C:\Folder\Image.jpg" -Width 32 -Height 32
.INPUTS
.OUTPUTS
.NOTES
Author: Fxbyy
.FUNCTIONALITY
Converts an image to ASCII art.
#>
function Convert-ImageToAscii {
[CmdletBinding(DefaultParameterSetName = 'AutoSize')]
param (
[Parameter(Mandatory = $true)]
[string] $InFile,
[Parameter(Mandatory = $false, ParameterSetName = 'CustomSize')]
[int] $Width,
[Parameter(Mandatory = $false, ParameterSetName = 'CustomSize')]
[int] $Height,
[Parameter(Mandatory = $false)]
[switch] $Invert
)
begin {
$tempFile = "$PSScriptRoot\temp.jpg"
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Drawing")
$img = [System.Drawing.Image]::FromFile((Get-Item $InFile))
if ($PSCmdlet.ParameterSetName -eq 'AutoSize') {
[int]$Height = $Host.UI.RawUI.WindowSize.Height * ($img.Size.Width / $img.Size.Height)
[int]$Width = $Height * ($img.Size.Width / $img.Size.Height)
} else {
if ($null -eq $Height -or $Height -eq 0) {
[int]$Height = $Width * ($img.Size.Height / $img.Size.Width)
} elseif ($null -eq $Width -or $Width -eq 0) {
[int]$Width = $Height * ($img.Size.Width / $img.Size.Height)
}
}
}
process {
$bmp = New-Object System.Drawing.Bitmap($Width, $Height)
$graph = [System.Drawing.Graphics]::FromImage($bmp)
$graph.DrawImage($img, 0, 0, $Width, $Height)
$graph.Dispose()
$img.Dispose()
if ($Invert) {
$symbols = " .,:~+t?xmoX#M%@"
} else {
$symbols = "@%M#Xomx?t+~:,. "
}
$res = ""
foreach ($h in 1..$bmp.Height) {
foreach ($w in 1..$bmp.Width) {
$px = $bmp.GetPixel($w - 1, $h - 1)
$brightness = (0.2126 * $px.R + 0.7152 * $px.G + 0.0722 * $px.B)
if ($brightness -le 15) { $res += $symbols[0] + " " }
elseif ($brightness -le 31) { $res += $symbols[1] + " " }
elseif ($brightness -le 47) { $res += $symbols[2] + " " }
elseif ($brightness -le 63) { $res += $symbols[3] + " " }
elseif ($brightness -le 79) { $res += $symbols[4] + " " }
elseif ($brightness -le 95) { $res += $symbols[5] + " " }
elseif ($brightness -le 111) { $res += $symbols[6] + " " }
elseif ($brightness -le 127) { $res += $symbols[7] + " " }
elseif ($brightness -le 143) { $res += $symbols[8] + " " }
elseif ($brightness -le 159) { $res += $symbols[9] + " " }
elseif ($brightness -le 175) { $res += $symbols[10] + " " }
elseif ($brightness -le 191) { $res += $symbols[11] + " " }
elseif ($brightness -le 207) { $res += $symbols[12] + " " }
elseif ($brightness -le 223) { $res += $symbols[13] + " " }
elseif ($brightness -le 249) { $res += $symbols[14] + " " }
else { $res += $symbols[15] + " " }
}
$res += "`n"
}
}
end {
$BitMap.Dispose()
Remove-Item $tempFile -Force
$res
}
}
(generated by convert-ps2md.ps1 using the comment-based help of convert-image2ascii.ps1 as of 07/29/2023 10:33:44)