mirror of
https://github.com/fleschutz/PowerShell.git
synced 2024-12-25 16:18:55 +01:00
96 lines
3.4 KiB
PowerShell
Executable File
96 lines
3.4 KiB
PowerShell
Executable File
<#
|
|
.SYNOPSIS
|
|
Converts images to ASCII art
|
|
.DESCRIPTION
|
|
This PowerShell script converts an image to ASCII art.
|
|
.EXAMPLE
|
|
PS> ./convert-image2ascii -InFile "C:\Folder\Image.jpg" -Width 32 -Height 32
|
|
.NOTES
|
|
Author: Fxbyy
|
|
#>
|
|
|
|
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
|
|
}
|
|
}
|