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Histogram. Part 1: In the Camera Instructor: David King. Using The Camera Histogram. What is a Histogram? A Camera’s Histogram is a type of horizontal bar chart that plots the distribution of tones in the scene.

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Presentation Transcript

### Histogram

Part 1: In the Camera

Instructor: David King

• What is a Histogram?

• A Camera’s Histogram is a type of horizontal bar chart that plots the distribution of tones in the scene.

The range of the barsindicates the rangeof tones that are inthe captured scene

The “Y” Axis shows relativefrequency of

occurence.

The “X” Axis shows the tones the chip is capable of recording

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• The histogram can tell us if our exposure is correct and if the contrast is acceptable.

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• The histogram can tell us if our exposure is correct and if the contrast is acceptable.

• Remember, theupright barsshow the rangeof tones thatcan be capturedby the sensor.

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• This histogramis indicatingan under-exposure wherethere are moredark tones inthe scene thanwere captured

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• This histogramis indicatingan over-exposure wherethere are morelight tones inthe scene thanwere captured

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• This histogramis indicatinga perfectexposure whereall of the tones in the scene were captured

Instructor: David King [email protected]sdccd.edu

• What Does a Histogram Tell Us?

• What otherhistogramsindicate…

Instructor: David King [email protected]

• What Does a Histogram Tell Us?

• QUESTIONS?

Instructor: David King [email protected]