Photography and Media Digital Post-Processing & Editing 1 — Questions and Answers
Question 1: What does a 'histogram' display in photo editing software?
- A list of camera settings used
- A graph showing the distribution of tonal values (shadows to highlights) in an image (Correct answer)
- A timeline of editing steps
- A color profile chart
Correct answer: A graph showing the distribution of tonal values (shadows to highlights) in an image
A histogram is a bar graph that shows how pixels in an image are distributed across the tonal range from pure black (left) to pure white (right).
Question 2: In photo editing, what is 'dodging'?
- Removing lens distortion
- Selectively lightening specific areas of an image (Correct answer)
- Removing noise from shadows
- Adjusting color saturation
Correct answer: Selectively lightening specific areas of an image
Dodging is a darkroom-derived technique for selectively lightening specific areas of an image by reducing exposure in those regions.
Question 3: What is 'chromatic aberration' in a photographic image?
- Oversaturation of colors in post-processing
- Color fringing where different wavelengths of light focus at different points along lens edges (Correct answer)
- Incorrect white balance causing a color cast
- Noise visible in colored areas of a photo
Correct answer: Color fringing where different wavelengths of light focus at different points along lens edges
Chromatic aberration is a lens flaw where different wavelengths of light don't converge at the same focal point, causing colored fringing (typically purple or green) along high-contrast edges.
Question 4: What does 'non-destructive editing' mean in photo editing software like Lightroom?
- Editing that cannot be undone
- Adjustments that don't permanently alter the original image file (Correct answer)
- Editing without using layers
- Processing that reduces file size
Correct answer: Adjustments that don't permanently alter the original image file
Non-destructive editing stores edits as instructions separate from the original image file, so the original is never altered and adjustments can always be reversed.
Question 5: What is 'noise' in digital photography?
- Unwanted sound recorded with video
- Random variation in brightness or color information, appearing as grain-like artifacts (Correct answer)
- Lens vibration during image capture
- Overexposed highlight areas
Correct answer: Random variation in brightness or color information, appearing as grain-like artifacts
Digital noise is the random luminance or color variation in an image, similar to grain in film, caused primarily by high ISO settings or long exposures.
Question 6: What does 'sharpening' do to an image in post-processing?
- Increases the camera's autofocus speed
- Enhances the perceived edge contrast to make details appear more defined (Correct answer)
- Removes lens blur from out-of-focus areas
- Reduces image file size
Correct answer: Enhances the perceived edge contrast to make details appear more defined
Sharpening increases the contrast along edges and fine detail, making an image appear crisper and more defined — it cannot recover truly out-of-focus areas.
Photography and Media Digital Post-Processing & Editing 1
What does a 'histogram' display in photo editing software?