Photography and Media Digital Post-Processing & Editing

Question 1

What does a 'histogram' display in photo editing software?

Accepted Answer

A graph showing the distribution of tonal values (shadows to highlights) in an image

Answer

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'?

Accepted Answer

Selectively lightening specific areas of an image

Answer

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?

Accepted Answer

Color fringing where different wavelengths of light focus at different points along lens edges

Answer

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?

Accepted Answer

Adjustments that don't permanently alter the original image file

Answer

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?

Accepted Answer

Random variation in brightness or color information, appearing as grain-like artifacts

Answer

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.

Photography and Media Practice Test

Photography and Media Practice Test

Photography and Media Digital Post-Processing & Editing