Question 1. In Figure 1 above are five variations of the same
image labeled A, B, C, D and E. Each is different because of a curves
adjustment. In Figure 2 above are five curves labeled 1, 2, 3, 4 and 5.
Match the curve in Figure 2 to the resulting image in Figure 1. The
original image and its original curve are also shown.
Hint. Image A compared to the original has more whites and more
blacks (increased contrast). Look for a curve that converts some of the
input tones to white and black. Image B is darker overall. Look for
a curve that takes the input tones and shifts them into darker tones.
Image C has distinct bands of tone, often called
posterization. It no longer has the smooth tonal gradations of the
original. Look for a curve that divides the input tones into bands of
output tones. Image D is lighter overall. Look for a curve that
takes the input tones and shifts them into lighter tones. Image E has
whites where there were blacks and has blacks where there were whites.
Look for a curve that reverses the tones.
- Image A and curve 4. Image B and curve 3. Image C and curve
1. Image D and curve 5. Image E and curve 2.
Question 2. In Figure 1 above, which image has more
Image A or image D?
- A is the correct answer. Contrast is how far apart on
the tonal scale are the lightest and darkest areas of an image. The
further apart, the more contrast. The tones in image D are closer
together on the tonal scale than the tones in image A.
Question 3. In Figure 1 above, which image has more contrast?
The original or image E?
- In terms of tones, the original and image E have opposite
tones. In terms of contrast, both images have identical contrast.
Question 4. In Figure 3 below are two curves labeled A and B.
If we wanted to open up (lighten) the shadow areas of an image, which curve
would be the most appropriate one to use?
- B is the correct answer. Curve A will take some of the
darker tones and remap them to solid black. This will result in
shadow areas becoming darker. Curve B takes black and some of the
darker tones and remaps them to tones not as dark as originally.
Question 5. In Figure 4 below are four Curves dialog boxes.
Listed below are four descriptions. Match the description to the Curves
dialog box that best represents the description.
- Darken image, increase contrast
- Darken image, decrease contrast
- Lighten image, increase contrast
- Lighten image, decrease contrast
- Curve A and description 3. Curve B and description 4. Curve C
and description 1. Curve D and description 2.