[SOLVED] How to Create an Image from UTF8 Text via Command-line

As the title points out, I'm trying to create an image from unicode text via command line. I tried...
convert -pointsize 48 -size 400 caption:测试用 text.png
But that results in question marks for the Chinese characters. So searching around online I discovered that I needed to specify a font which could display the characters. The characters show up just fine in Firefox, KDE, Kate, Terminal, etc so I know I have a font which can render them. I thought it might be DejaVu but this also resulted in question marks...
convert -font /usr/share/fonts/TTF/DejaVuSerif.ttf -pointsize 48 -size 400 caption:测试用 text.png
Any ideas?
Last edited by tony5429 (2011-01-31 23:17:41)

DejaVu doesn't contain those Chinese glyphs at all, so please don't blame ImageMagick for not rendering them.
So, Firefox, Kate, Terminal and the others you stated to use DejaVu, if encounter these characters, fall back to some other fonts to render them. These fonts are, however, not vector, but bitmap fonts. (This can be seen if you increase text size (Ctrl++ in Firefox): the Chinese characters don't change, they remain of their inherent size.)
Actually, e.g. /usr/share/fonts/misc/18x18ko.pcf.gz definitely contains the three example characters, so the mentioned apps may use this font as fall back.
Apparently ImageMagick doesn't handle bitmap fonts (I'm not sure), so you won't be able to hit your original target. Anyway, since you tried to parse "-pointsize 48", you wouldn't be satisfied with the font size.
Your only choice seems to be using the above mentioned CJK-approved TTFs.
EDIT: typo
Last edited by barto (2011-01-28 21:52:33)

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[SOLVED] How to Create an Image from UTF8 Text via Command-line

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