Blackfly - CYLOD

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Point Grey <strong>Blackfly</strong> Technical Reference Appendix C: FlyCapture API Code Examples C.10 Example: Setting Sharpness Using the FlyCapture API The following FlyCapture 2.0 code snippet adjusts sharpness to 1500 using the C++ interface. The snippet assumes a Camera object cam. //Declare a Property struct. Property prop; //Define the property to adjust. prop.type = SHARPNESS; //Ensure the property is on. prop.onOff = true; //Ensure auto-adjust mode is off. prop.autoManualMode = false; //Set the value of sharpness to 1500. prop.valueA = 1500; //Set the property. error = cam.SetProperty( &prop ); C.11 Example: Setting Gamma Using the FlyCapture API The following FlyCapture 2.0 code snippet adjusts gamma to 1.5 using the C++ interface. The snippet assumes a Camera object cam. //Declare a Property struct. Property prop; //Define the property to adjust. prop.type = GAMMA; //Ensure the property is on. prop.onOff = true; //Ensure the property is set up to use absolute value control. prop.absControl = true; //Set the absolute value of gamma to 1.5 prop.absValue = 1.5; //Set the property. error = cam.SetProperty( &prop ); Revised 12/13/2012 Copyright ©2012 Point Grey Research Inc. 80
Point Grey <strong>Blackfly</strong> Technical Reference Appendix C: FlyCapture API Code Examples C.12 Example: Setting White Balance Using the FlyCapture API The following FlyCapture 2.0 code snippet adjusts the white balance red channel to 500 and the blue channel to 850 using the C++ interface. The snippet assumes a Camera object cam. //Declare a Property struct. Property prop; //Define the property to adjust. prop.type = WHITE_BALANCE; //Ensure the property is on. prop.onOff = true; //Ensure auto-adjust mode is off. prop.autoManualMode = false; //Set the white balance red channel to 500. prop.valueA = 500; //Set the white balance blue channel to 850. prop.valueB = 850; //Set the property. error = cam.SetProperty( &prop ); C.13 Example: Accessing Raw Bayer Data using FlyCapture Using the FlyCapture SDK, raw image data can be accessed programmatically via the getData method of the Image class. In Raw8 modes, the first byte represents the pixel at [row 0, column 0], the second byte at [row 0, column 1], and so on. Read the BAYER_TILE_MAPPING register 0x1040 to determine the current Bayer output format (RGGB, GRBG, and so on). Using a Bayer format of RGGB, for example, the getData method returns the following (assuming char* data = rawImage.GetData(); and an Image object rawImage): • data[0] = Row 0, Column 0 = red pixel (R) • data[1] = Row 0, Column 1 = green pixel (G) • data[640] = Row 1, Column 0 = green pixel (G) • data[641] = Row 1, Column 1 = blue pixel (B) Revised 12/13/2012 Copyright ©2012 Point Grey Research Inc. 81
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