Use explicit scoping

[rjbohinski]

Use explicit scoping instead of accidental usage of default package private level.

About 40 instances of this issue exist within the code.

Example:

//Images
Image frame;
Image binaryFrame;
Image testFrame;

This should be changed to one of the following depending on the required visibility. Listed in order from most visible to least visible.

//Images
public Image frame;
protected Image binaryFrame;
private Image testFrame;