1. An image presenting method for generating an image to meet a lenticular sheet of a particular specification, the method comprising the following steps: providing a database where at least one lenticular sheet data and at least one alignment pattern data are stored; reading out the at least one lenticular sheet data and the at least one alignment pattern data from the database; processing an image data and the at least one alignment pattern data according to the at least one lenticular sheet data; combining the at least one image data and the at least one alignment pattern data to generate a mixed image which meets the lenticular sheet of the particular specification; and outputting the mixed image.