FindDots

Scans the image pixel by pixel. When a black pixel is found it is added to a new blob or added to an existing blob if it is adjacent to that blob. Any adjacent blobs are then joined. When the scan has finished, any blob above a minimum size and below a maximum size is added as a 'dot'.

Any dots found that are close to the right hand side of the image are classified as full stops rather than dots (such as on 'i's and 'j's).