With this in mind, a good project should reference some literature that is directly related to the topic of the project. Beyond just a review of existing work the project needs to show some experimentation and "hands-on" work with image data.
Note this list is meant to be a general suggestion of possible projects. In order to be able to finish in one semester, you will need to focus on a fairly particular topic. However, within that particular topic it would be good if you can combine several of the issues that have been covered in class and in labs.