How to convert .tiff images into .jpeg format

Question

I am using Attachment_fu to upload images.

I need to convert .tiff images into .jpeg format after uploading image in application.

I used below code:

 :styles => {
    :thumb => ["150x172#",:jpg],
    :large => ["100%", :jpg]
  },

But it is not useful for me.

Please help me how to convert image format?

Answer 1

As already implied in your tags ImageMagic will do the trick. You can either use the convert command line utility or use its ruby binding RMagic . In the latter case you just have to read the image and write it again with the new name. The above documentation says:

require 'RMagick'
include Magick

cat = ImageList.new("Cheetah.jpg")
smallcat = cat.minify
smallcat.display
smallcat.write("Small-Cheetah.gif")

You can also read and write from a string if you do not want the file on disk.