How to convert an image into file object?

Here is a test file object

Illuminate\Http\Testing\File {#3132
  +name: "avatar.jpg"
  +tempFile: stream resource {@934
    timed_out: false
    blocked: true
    eof: false
    wrapper_type: "plainfile"
    stream_type: "STDIO"
    mode: "r+b"
    unread_bytes: 0
    seekable: true
    uri: "/private/var/folders/t1/yrwk61ln3c9dsy3cvdxw0z440000gn/T/phphMWhlK"
    options: []
  }
  +sizeToReport: null
  -test: true
  -originalName: "avatar.jpg"
  -mimeType: "image/jpeg"
  -size: 70
  -error: 0
  #hashName: null
  path: "/private/var/folders/t1/yrwk61ln3c9dsy3cvdxw0z440000gn/T"
  filename: "phphMWhlK"
  basename: "phphMWhlK"
  pathname: "/private/var/folders/t1/yrwk61ln3c9dsy3cvdxw0z440000gn/T/phphMWhlK"
  extension: ""
  realPath: "/private/var/folders/t1/yrwk61ln3c9dsy3cvdxw0z440000gn/T/phphMWhlK"
  aTime: 2018-10-23 06:51:23
  mTime: 2018-10-23 06:51:23
  cTime: 2018-10-23 06:51:23
  inode: 31382590
  size: 70
  perms: 0100600
  owner: 501
  group: 20
  type: "file"
  writable: true
  readable: true
  executable: false
  file: true
  dir: false
  link: false
}

Now as soon as I move this image to a specific location, it is no longer a file object. If I try to get the image, I get that as binary. How can I convert the image into same old image object after it is uploaded?