Imports github.com/disintegration/imaging gopkg.in/amz.v1/aws github.com/kjk/golibjpegturbo golang.org/x/image/tiff golang.org/x/image/bmp gopkg.in/amz.v1/s3 Standard library imports bytes fmt io log math net/url os path/filepath strings time image/png mime image/jpeg image/gif image