Install mini system, then you`ll be able to install full desktop. https://help.ubuntu.com/community/Installation/MinimalCD
The minimal iso image will download packages from online archives at installation time instead of providing them on the install media itself. Downloading packages at install time reduces the size of the iso image to approximately ~40MB depending on architecture (see below), as well as providing only the packages needed for installation.
Mini requires internet connection. I don't remember exactly will mini provide text interface to install desktop or not, anyway you can always do it from command line, like:
sudo apt-get install gnome-desktop.
If you don't have internet connection with mini, its not your option to install, use full dvd.
While the minimal iso image is handy, it isn't useful for installing on UEFI-based systems that you want to run in UEFI mode. The mini iso lacks the proper files for booting the computer in UEFI mode. Thus, the computer will boot in BIOS compatibility mode, and the installation will be in BIOS mode.
You can use an Ubuntu Server amd64 iso file (64-bit) for 'mini installations' in UEFI mode.
Try server image.