Welcome to Fauxtoshop!
Enter name of image file to open (or blank to quit): kitten.jpg
Opening image file, may take a minute...
Which image filter would you like to apply?
	1 - Scatter
	2 - Edge detection
	3 - "Green screen" with another image
	4 - Compare image with another image
Your choice: 1
Enter degree of scatter [1-100]: 999
Enter degree of scatter [1-100]: -5
Enter degree of scatter [1-100]: 10
Enter filename to save image (or blank to skip saving): kitten-scatter-10.png

Enter name of image file to open (or blank to quit): oops-not-found.png
Opening image file, may take a minute...
Enter name of image file to open (or blank to quit): kitten-scatter-10.png
Opening image file, may take a minute...
Which image filter would you like to apply?
	1 - Scatter
	2 - Edge detection
	3 - "Green screen" with another image
	4 - Compare image with another image
Your choice: what?
Illegal integer format. Try again.
Your choice: 0
Which image filter would you like to apply?
	1 - Scatter
	2 - Edge detection
	3 - "Green screen" with another image
	4 - Compare image with another image
Your choice: 4
Now choose another image file to compare to.
Enter name of image file to open: bad-image-file-wont-be-found.png
Opening image file, may take a minute...
Enter name of image file to open: expected-output-kitten-scatter-10.png
Opening image file, may take a minute...
These images are the same!

Enter name of image file to open (or blank to quit): 
Exiting.