Image Editing Filters and Effects 3 — Questions and Answers
Question 1: What does the 'Posterize' adjustment do to an image?
- Adds a poster border
- Reduces the image to a specified number of tonal levels per channel, creating a flat graphic look (Correct answer)
- Converts to black and white
- Applies a color overlay
Correct answer: Reduces the image to a specified number of tonal levels per channel, creating a flat graphic look
Posterize reduces each channel to a set number of discrete tonal values, resulting in a bold flat-color graphic style reminiscent of screen-printed posters.
Question 2: What does the 'Threshold' adjustment do?
- Adjusts contrast curve
- Converts an image to pure black and white with no gray tones based on a brightness threshold (Correct answer)
- Reduces color levels
- Adds threshold guards to the histogram
Correct answer: Converts an image to pure black and white with no gray tones based on a brightness threshold
Threshold converts all pixels lighter than the threshold value to white and all darker pixels to black, creating a high-contrast two-tone image.
Question 3: What is the 'Photomerge' feature used for in Photoshop?
- Merging all layers
- Automatically stitching multiple overlapping photos together into a panorama (Correct answer)
- Blending two photos using gradients
- Merging smart objects
Correct answer: Automatically stitching multiple overlapping photos together into a panorama
Photomerge automatically aligns and blends a series of overlapping photographs into a wide panoramic image.
Question 4: What does the 'Emboss' filter do to an image?
- Adds color to edges
- Creates a raised 3D relief effect by detecting edges and filling with gray (Correct answer)
- Sharpens all pixels
- Adds a beveled border
Correct answer: Creates a raised 3D relief effect by detecting edges and filling with gray
The Emboss filter renders the image in gray tones with highlighted and shadowed edges that simulate a three-dimensional embossed surface.
Question 5: Which blending mode is most commonly used with a texture overlay to let both texture and original image show through?
- Normal
- Overlay or Soft Light (Correct answer)
- Dissolve
- Exclusion
Correct answer: Overlay or Soft Light
Overlay and Soft Light both combine the texture with the image by keeping midtones partially transparent while boosting contrast, showing both layers naturally.
Question 6: What is the 'Despeckle' filter used for?
- Adding sparkle effects
- Reducing noise by blurring everything except edges (Correct answer)
- Removing lens flare
- Sharpening fine details
Correct answer: Reducing noise by blurring everything except edges
Despeckle reduces noise by smoothing pixel variations in flat-color areas while preserving the sharpness of edges.
Image Editing Filters and Effects 3
What does the 'Posterize' adjustment do to an image?