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Convex Mirror

343 bytes added, 16:20, 16 January 2014
draw a circle
**<code>convert background.jpg -stroke White -fill none -strokewidth 1 -draw 'circle 715,740 35,740' bgcircle.png
</code>
=make a circular matte=
<syntaxhighlight lang="bash">
convert -size 1864x1864 xc:black -fill white -draw 'circle 932, 932, 2, 932' circle_mask.gif
</syntaxhighlight>
*masking image with circle mask
<syntaxhighlight lang="bash">
convert circle.png circle_mask.gif -alpha Off -compose CopyOpacity -composite masked_circle.png
</syntaxhighlight>
=Error Image + Drawing Image=

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