Crop center and resize paperclip image attachment

has_attached_file :profile_image,
storage: :s3,
s3_credentials: {
bucket: Settings.s3_bucket_name,
access_key_id: Settings.aws_access_key_id,
secret_access_key: Settings.aws_secret_access_key
},
default_url: '/assets/default_profile_pic.png',
styles: { square_50: '', square_100: '', square_193: '' },
convert_options: {
square_50: '-gravity center -resize 50x50^ -crop 50x50+0+0',
square_100: '-gravity center -resize 100x100^ -crop 100x100+0+0',
square_193: '-gravity center -resize 193x193^ -crop 193x193+0+0'
}