Image Editing Filters and Effects 1 — Questions and Answers
Question 1: What does the 'Gaussian Blur' filter do?
- Sharpens edges
- Softens an image by averaging pixel values with a bell-curve-shaped kernel (Correct answer)
- Adds film grain
- Removes color noise
Correct answer: Softens an image by averaging pixel values with a bell-curve-shaped kernel
Gaussian Blur smooths an image by blending each pixel with its neighbors using a Gaussian (bell curve) distribution.
Question 2: What is the 'Unsharp Mask' filter used for despite its confusing name?
- Creating a blurred background
- Sharpening image edges by increasing contrast along edges (Correct answer)
- Removing noise
- Converting to grayscale
Correct answer: Sharpening image edges by increasing contrast along edges
Unsharp Mask sharpens by boosting the contrast along edge transitions, derived from a traditional darkroom technique using a blurred (unsharp) negative.
Question 3: What does the 'Camera Raw Filter' allow you to do non-destructively in Photoshop?
- Import RAW files
- Apply RAW-style tonal, color, and detail adjustments to any layer (Correct answer)
- Convert to Camera RAW format
- Apply lens corrections only
Correct answer: Apply RAW-style tonal, color, and detail adjustments to any layer
Camera Raw Filter gives you access to all Adobe Camera Raw controls — exposure, color, sharpening, noise reduction — directly on any Photoshop layer.
Question 4: Which Photoshop filter creates a high-contrast grayscale version of an image useful for sharpening via Overlay blend mode?
- Emboss
- High Pass (Correct answer)
- Threshold
- Median
Correct answer: High Pass
High Pass extracts edge detail and renders everything else as 50% gray, which when set to Overlay sharpen only the edges.
Question 5: What effect does the 'Radial Blur' filter create?
- A linear motion streak
- A zoom or spin blur effect radiating from a center point (Correct answer)
- Softens only the edges
- Creates lens flare
Correct answer: A zoom or spin blur effect radiating from a center point
Radial Blur creates either a spin (rotation around a center point) or zoom (motion exploding from a center) blur effect.
Question 6: What is 'Lens Distortion' correction used for in photo editing?
- Adding fisheye effects
- Removing barrel, pincushion, or vignette distortion caused by camera lenses (Correct answer)
- Blurring the edges of a photo
- Rotating the image
Correct answer: Removing barrel, pincushion, or vignette distortion caused by camera lenses
Lens Distortion correction compensates for barrel or pincushion distortion introduced by the optics of wide-angle or telephoto lenses.
Image Editing Filters and Effects 1
What does the 'Gaussian Blur' filter do?