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Create Image thumbnail using ImageMagick in Elixir
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defmodule Image.Transformer do | |
def transform(original_file, operation \\ "convert") do | |
thumb_path = generate_thumb_file(original_file) | |
System.cmd(operation, operation_commands(original_file_path, thumb_path)) | |
thumb_path | |
end | |
defp generate_thumb_file(original_file) do | |
original_file | |
|> String.replace(".", "_thumb.") | |
end | |
defp operation_commands(original_file_path, thumb_path, size \\ "250x90") do | |
[ | |
"-define", | |
"jpeg:size=500x180", | |
original_file_path, | |
"-auto-orient", | |
"-thumbnail", | |
size, | |
"-unsharp", | |
"0x.5", | |
thumb_path | |
] | |
end | |
end |
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