4 TakingPictures

Using Histogram

A histogram is a graph showing the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

brightness of an image on the horizontal

pixels

 

 

 

 

 

axis and the number of pixels on the

 

 

 

 

 

vertical axis (distribution chart of the

 

 

 

 

 

of

 

 

 

 

 

brightness). The histogram will help you

 

 

 

 

 

Number

 

 

 

 

 

detect the brightness of the image you

 

 

 

 

 

have taken. For instance, the graph

 

 

 

 

 

peak tends to appear on the left side for

 

 

Brightness

 

 

a darker image, and the graph peak

 

(Dark)

(Bright)

 

 

tends to appear on the right side for a

 

 

 

 

 

 

 

brighter image.

In general, when the exposure metering of your image is well-balanced, the graph peaks tend to appear in the middle.

On the contrary, when the exposure metering of the subject is imbalanced, that is with dark areas and/or bright areas, the peaks will appear on the sides rather than in the middle.

Dark

Neutral

 

Bright

 

 

 

 

 

 

 

 

 

 

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