问题
I'm learning to use ImageMagick, but I'm having trouble when I try to generate an image like the example below:
And for that, I'm using the following code:
convert original.jpg -size 460x caption:'This is a multiline caption, This is a multiline caption, This is a multiline caption.' result.jpg
This command generated two separate images, one with just the title. Can you help me?
PS: I'm using RubyOnRails with ImageMagick, but you can suggest examples with MiniMagick or Rmagick. Thanks.
回答1:
This works in php and I can not see why it will not work o RubyOnRails:
convert original.jpg -size 460x -background transparent -fill black -pointsize 40 caption:'This is a multiline caption, This is a multiline caption, This is a multiline caption.' -gravity center -composite result.jpg
来源：https://stackoverflow.com/questions/10353401/imagemagick-multiline-text-and-background-image