kuddev
c0f0096c9f
Issue templates (bug report / feature request) and the sidebar, tab-badge, ink-extent and crop-zoom probe scripts used during 1.1.0 GPUI parity work. Ignore git filter-branch's .git-rewrite scratch directory.
24 lines
802 B
PowerShell
24 lines
802 B
PowerShell
param(
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[string]$Src,
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[int]$X0, [int]$X1, [int]$Y0, [int]$Y1,
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# Background luminance ceiling: pixels brighter than this count as ink.
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[int]$Threshold = 60
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)
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Add-Type -AssemblyName System.Drawing
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$bmp = New-Object System.Drawing.Bitmap($Src)
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$minY = -1; $maxY = -1; $minX = -1; $maxX = -1
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for ($y = $Y0; $y -le $Y1; $y++) {
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for ($x = $X0; $x -le $X1; $x++) {
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$c = $bmp.GetPixel($x, $y)
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$lum = [int](0.299 * $c.R + 0.587 * $c.G + 0.114 * $c.B)
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if ($lum -gt $Threshold) {
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if ($minY -lt 0) { $minY = $y }
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$maxY = $y
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if ($minX -lt 0 -or $x -lt $minX) { $minX = $x }
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if ($x -gt $maxX) { $maxX = $x }
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}
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}
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}
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$bmp.Dispose()
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Write-Output "ink x=[$minX,$maxX] y=[$minY,$maxY] in probe x=[$X0,$X1] y=[$Y0,$Y1]"
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