Introduction

Histograms

 

 

4:3 N

 

 

100-0001

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ISO 400

F3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: STD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

: OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

:

 

 

 

 

 

 

 

 

 

 

: -1 2 3

 

 

 

 

 

 

 

12/31/2050

10:00 AM

 

 

 

 

 

qImage quality

and

size,

wSensitivity, eShut-

ter speed/aperture,

rFinePix

color, tFlash mode,

yWhite balance, uExposure compensation, iFrame number, oPicture (overexposed areas blink on and off), !0Histogram

Overexposed areas blink on and off.

Histograms show the distribution of tones in the im- age. Brightness is shown by the horizontal axis, the number of pixels by the vertical axis.

of .No pixels

Pixel brightness

Shadows Highlights

Optimal exposure: Pixels are distributed in an even curve throughout the tone range.

Overexposed: Pixels are clustered at the right side of the graph.

Underexposed: Pixels are clustered at the left side of the graph.

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