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Madhubala
Asked: 2020-01-23 08:32:46 +0800 CST

ImageMagick：如何添加叠加在图片上的多行文本？文本被截断

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代码 -

convert -size 2000x1000 xc:none -gravity center \
    -stroke yellow -pointsize 50 -font Courier-BoldOblique -strokewidth 3 -annotate +100+100 caption:'Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving' \
    -blur 0x25 -level 0%,50% \
    -fill white -stroke none -annotate +100+100 caption:'Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving' \
    1.jpg  +swap -gravity center -geometry +0-3 \
    -composite  Walpaperquote.jpg

输出 ：

Walpaperquote.jpg

我的问题是：我怎样才能使完整的文本出现？哪里出了问题？

提前感谢您的帮助！尝试了很多方法，但无法弄清楚如何正确设置！我对 ImageMagick 很陌生！

bash imagemagick

1 个回答

  1. Best Answer

    这里的解决方案是在输入文本中包含换行符。有几种方法可以做到这一点：

    $'\n'

    使用$'...\n...'- 通过用 引用字符串$'...'，启用转义序列 -\n是换行符。有关更多转义序列，请参见此处。

    caption=$'Conflict is the gadfly of thought.\nIt stirs us to observation and memory.\nIt instigates to invention.\nIt shocks us out of sheeplike passivity, and sets us at noting and contriving'

    read -d ''

    用于read -d ''从标准输入获取多行 -EOF标记输入的结束。

    read -d '' caption <<EOF
Conflict is the gadfly of thought.
It stirs us to observation and memory.
It instigates to invention.
It shocks us out of sheeplike passivity, and sets us at noting and contriving
EOF

    多行变量

    实际上可以在引号之间包含换行符，尽管从可读性的角度来看我不喜欢这样。

    caption="Conflict is the gadfly of thought.
It stirs us to observation and memory.
It instigates to invention.
It shocks us out of sheeplike passivity, and sets us at noting and contriving"

    用法

    这随后可以用作 的参数convert：

    in_file='1.jpg'
out_file='Walpaperquote.jpg'

convert -size 2000x1000 xc:none -gravity center \
    -stroke yellow -pointsize 50 -font Courier-BoldOblique -strokewidth 3 -annotate +100+100 "caption:${caption}" \
    -blur 0x25 -level 0%,50% \
    -fill white -stroke none -annotate +100+100 "caption:${caption}" \
    "${in_file}"  +swap -gravity center -geometry +0-3 \
    -composite  "${out_file}"

    示例输出（裁剪） - 您仍然需要调整边界框的大小。

    示例输出

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