423 Final - Colour Reproduction Requirements

Front 1

What are the 2 main categories considered to get good colour?

Back 1

1. Colour Reproduction Requirements

2. Colour Reproduction Specifications

Front 2

What are those requirements?

Back 2

1. Tone Reproduction
2. Grey Balance
3. Colour Correction
4. Colour Reproduction Specifications including Unsharp Masking & Artifact Removal

Front 3

True or False -

In Tone Reproduction,

Contrast is determined by media

Back 3

TRUE

Front 4

True or False -

In Tone Reproduction,

Dot Gain or TVI does NOT impact tonal range and contrast

Back 4

FALSE

Front 5

In Tone Reproduction,

What 3 Standard Guidelines are usually run?

Back 5

1. Snap
2. Gracol
3. SWOP

Front 6

What is Tonal Range?

Back 6

- It refers to the overall brightness & contrast of an image within a tonal range.
- The tonal range is all the tones from the highlight to the shadow of an image.

Front 7

What are End Points?

Back 7

- The highlight and shadow of an image.
- Both highlight and shadow carry detail

Front 8

True or False -

In Tone Reproduction,

Setting End Points on a digital camera involves using Aperture to increase/decrease the amount of exposure

Back 8

TRUE

Front 9

True or False -

In Tone Reproduction,

Setting End Points in Photoshop involves using the White Point & Black tools in the Curves Panel

Back 9

TRUE

Front 10

What is Midtone?

Back 10

- It is the range of tones halfway between the highlight and the shadow

Front 11

True or False -

In Tone Reproduction,

There is no such thing as Quarter Tones & Three Quarter tones & everything in between.

Back 11

FALSE

Front 12

True or False -

In Tone Reproduction,

Adjusting the midtone value of a tone reproduction curve will increase/decrease the HL or SH contrast

Back 12

TRUE

Front 13

True or False -

In Tone Reproduction,

Increasing the midtone to get more highlight detail means you will lose shadow detail.

Back 13

TRUE

Front 14

True or False -

In Tone Reproduction,

Decreasing the midtone to get more shadow detail will not result in losing highlight detail.

Back 14

FALSE

Front 15

What is Grey Balance?

Back 15

- In image editing, it is the absence of a colour cast or bias to the image as opposed to the correct proportion of CMY when printing.

Front 16

True or False -

In Grey Balance,

The term is known as Colour Balance & it means the proper balance of input colours in the scan source file.

Back 16

TRUE

Front 17

On a Digital Camera, how is Grey Balanced used?

Back 17

- Use the built-in lighting compensations to compensate for different lighting sources
- Use a custom set by shooting a grey balance card

Front 18

In Photoshop, how is Grey Balances used?

Back 18

- Use the info palette to determine if a cast exists, and then use the "colour balance" tool to remove casts in HL/MT/SH

Front 19

True or False -

In Colour Correction,

On a Digital Camera, it is NOT a function of the camera's "saturation" setting & the RGB Profile.

Back 19

FALSE

Front 20

True or False -

In Colour Correction,

In Photoshop, the Hue/Saturation Tool is used to perform global or less specific colour correction.

Back 20

TRUE

Front 21

What type of Colour Correction can be gained in Photoshop with the Selective Colour option?

Back 21

- A more precise correction than the Hue/Saturation Tool.

Front 22

What type of Colour Correction can be gained in Photoshop with the Replace Colour option?

Back 22

- Extremely localized colour adjustment.

Front 23

What is Unsharp Masking on a digital camera?

Back 23

- It is the ability to add sharpening at the camera stage.
- Not all cameras can do this.

Front 24

True or False -

Sharpening is the same as focus.

Back 24

FALSE

Front 25

What is Unsharp Masking in Photoshop?

Back 25

- It is a filter used to sharpen an image like a scanner would.

Front 26

What is the amount of USM needed in Photoshop for figures or natural objects?

Back 26

- A low setting, below 50

Front 27

What is the amount of USM needed in Photoshop for an image containing sharp-edge objects?

Back 27

- A higher setting, above 50

Front 28

What is the amount of USM needed in Photoshop for a high res image?

Back 28

- 150% - 200%

Front 29

What happens when a too high amount of USM is used in Photoshop?

Back 29

- It will produce obvious halos around high contrast areas

Front 30

Explain the USM Radius in Photoshop

Back 30

- It is the width of the electronic peaks created during USM
- Need to factor in the final size, res, & subject matter
- Setting is required for high res images
- A higher radius exaggerates USM

Front 31

Explain USM Threshold in Photoshop

Back 31

- It is how far apart 2 pixel's tonal values have to be before the filter affects them.
- Low values (1-4) result in a sharper looking image
- High values (10+) result in less sharpening

Front 32

Explain Artifact Removal

Back 32

- Involves trying to make the image look better by removing:
- dust
- scratches
- moire

Front 33

True or False -

Artifact removal is typically done at image capture.

Back 33

FALSE

Front 34

Name 2 Photoshop tools used in Artifact Removal.

Back 34

1. Despeckle Filter
2. Dust & Scratches Tool

Front 35

How is Moire reduced in Photoshop?

Back 35

- The image is slightly blurred to eliminate obvious moire patterns