SetSubSampling

Syntax

LONG SetSubSampling (LONG nMode)

Description

The function SetSubSampling() is used to activate horizontal and/or vertical subsampling. In this mode only every second pixel is read out from the sensor so the image size is reduce to the half and the frame rate is increased. This is equal to hardware scaling the image to 2:1. If a color camera is used, 4:2 scaling is deployed in which two pixels are read and two left out.

Achtung

Changes to the image geometry or pixel clock affect the value ranges of the frame rate and exposure time. After executing SetBinning(), calling the following functions is recommended in order to keep the defined camera settings:

•SetFrameRate()

•SetExposureTime()

•If you are using the uEye's flash function: SetFlashStrobe()

Parameters

nMode
IS_SUBSAMPLING_DISABLE	Full image resolution is used.
IS_SUBSAMPLING_VERT	Use vertical subsampling
IS_SUBSAMPLING_HOR	Use horizontal subsampling

Return values

IS_SUCCESS	Function executed successfully
IS_NO_SUCCESS	General error message

Related functions

•GetSubSampling()

•SetAOI()

•SetBinning()

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SetSubSampling