Finished Homework 3
Merge branch 'master' of
https://github.com/Peaches491/Digital-Image-Processing

Conflicts:
	IJ/.classpath
	IJ/hw3/Gradient_Magnitude.java
	IJ/hw3/Laplacian_Edge_Detection.java
	IJ/hw3/Utils.java
	IJ/hw3/Zero_Crossings.java