Method of Assessment: A way of applying in the review or investigation of the object in the image. Image interpretation activities follow a particular method are: Observations from the general to the specific objects objects Observations from the known object to the unknown object. Assessment methods in image interpretation activities generally using 2 different methods, among others: 1. Fishing Expedition Assessment methods objects in the image by means of observations throughout the region and is accompanied by a data retrieval. This activity is similar to the people who fished, explored the waters around the area to look for the presence or absence of fish. So the method is then called with the "Fishing Expedition" or "Fishing Expedition" 2. logical Search In this method of observation of the entire region in image retrieval is only performed but is selective in certain areas in accordance with the purpose of interpretation.