week 8- Lab

I used Photoshop 7 to apply custom filters to this image

What is the effect of the default mask?

the effect ranges depending on the numbers you type in.

the higher the number you type in you'll get a higher contrast. 

The lower, the lower.

if you type in anything less than 0, you get complete blackness.

Suggest possible of this filter technique for processing digital photographs?

This technique could be used for flyers or posters to make them more unique, obscure look in order to stand out.

 Create a new filter that is all zeros except for the centre value which should be 1. What does this filter do and why?

This filter brings it back to normal. The filter does this because 0 is the original image.