Enhancements

Question 1

What are the three types of filters?

Answer 1

Polarizing

U.V.

Contrast filters (black & white film)

Question 2

What happens when you choose a channel (contrast filter)?

Answer 2

The selected channel will allow its own colour to pass while blocking other colours. ( meaning they lighten their colour and darken others creating contrast)

Example: red channel will lighten red and making blue and green darker

Question 3

What are the two main colour modes we use?

Answer 3

RBG (red,blue,green)

CMYK (cyan,magenta,yellow,black)

Question 4

What do channels do for fingerprints?

Answer 4

Can be used to improve contrast between fingerprints and the background

Question 5

When might you choose CMYK?

Answer 5

Prints developed using Ninhydrin.

It works opposite of RBG and darken it’s own channel

Question 6

When would you use Black & white adjustments in photoshop?

Answer 6

Used when a fingerprint is on multicoloured surface. Also put into grey scale.

Question 7

Why do we use a minimum of 8 bit?

Answer 7

The tone is continuous

Question 8

Why document your enhancements?

Answer 8

Allows you to speak to what you did

It looks professional

Don’t rely on history tracker