Embodiments are directed toward analyzing images of cables or electronic devices to augment those images with information relating to the installation or troubleshooting of such cables and electronic devices. The images are analyzed to determine non-text characteristics of a connector of the cable or non-text characteristics of at least one port on the electronic device. These non-text characteristics can be compared with non-text characteristics of known connectors or ports to determine a type of the connector or a type of the ports on the electronic device. The images are then modified or overlaid with information identifying the type of connector or port.