Unit E: Improving Images with Adjustment Layers
Page 112:Understanding Grayscale
____ 1. A ____ image is a digital image in which each pixel can be one—and only one—of 256 shades of gray.
a. / black-and-white / c. / grayscaleb. / color / d. / none of the above
____ 2. Identifying pixel information in the Info panel is referred to as ____ pixels.
a. / trimming / c. / stakingb. / defining / d. / Sampling
____ 3. Adobe has designed the Info panel so that the Grayscale readouts sample pixels in ____.
a. / grayscale / c. / gray percentagesb. / ink percentages / d. / Order
__T__ 4. The grayscale range is 0–255. (True or False)
__F__ 5. In a grayscale image, each pixel can be one of 512 shades of gray. (True or False)
Page 114:Investigating a Grayscale Image
____ 1. What is the appropriate term for when a gradient shows every step from black to white?
a. / knocking / c. / push-steppingb. / stair-stepping / d. / showing steps
____ 2. A ____ is a smooth transition from shadows to midtones to highlights.
a. / tonal continuity / c. / smooth toneb. / continuous tone / d. / contiguous tone
____ 3. ____ are the darkest areas represented by pixels in the low third of the grayscale range.
a. / Shadows / c. / Blacksb. / Highlights / d. / Midtones
Page 116:Using the Brightness/ Contrast Adjustment
____ 1. An adjustment layer is called “____” because it exists as a layer on the Layers panel.
a. / singular / c. / safeb. / non-destructive / d. / base
____ 2. ____ are operations you do that affect the appearance of an image, such as manipulating brightness and contrast.
a. / Adjustments / c. / Fixesb. / Masks / d. / Layers
____ 3. With brightness, the higher the number, the ____ the pixel.
a. / larger / c. / darkerb. / brighter / d. / smaller
__T__ 4. You can make adjustments directly to pixels on a layer, but you can’t go back and re-adjust at a later time.
__T__ 5. A key to making adjustments is to sometimes walk the fine line between going far enough to make the adjustment the best it can be and going too far.
6. What is Brightness?
Defined by a pixel’s grayscale value; the higher the number, the brighter the pixel.
7. What is Adjustment? Are operations you do that affect the appearance of an image such as manipulating.
Page 118:Adjusting Black and White Points with levels
____ 1. On a histogram, the pixels at the far left have a grayscale value of ____.
a. / -255 / c. / 0b. / -1 / d. / 255
____ 2. Black and white points have a substantial effect on ____.
a. / stair-stepping / c. / midpointsb. / masks / d. / Contrast
____ 3. The ____ represents the brightest pixel in the image.
a. / brightness / c. / light pointb. / white point / d. / contrast
_T___ 4. Every image has a black point. True or False