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The output pixel format sets the pixel format actually used bei VisionPro. The output pixel format does not influence the camera pixel format. The camera pixel format is set via the custom feature PixelFormat.
If the specified output pixel format is different from the camera pixel format, VisionPro automatically converts the image into the output format.
When the camera format is Mono8 and the output format is set to RGBplanar you can not use VisionPro tools which expect a monochrome image.
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Limitations of VisionPro CogAcqFifoTools:
•When CogAcqFifoTool is used together with uEye cameras in QuickBuild, the output format is always RGBplanar while CogAcqFifoTool displays "Cognex Null Format". To be able to use monochrome output formats with CogAcqFifoTool in QuickBuild, the image source should be set to the "ImageSource" option. •When CogAcqFifoTool is used together with uEye cameras outside of QuickBuild, the output format is always Mono8. |
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Camera pixel formats
Depending on the camera type, the uEye interface for VisionPro supports the following pixel formats:
Pixel format
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Color camera
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Monochrome camera
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Mono8
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X
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X
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RAW8
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X
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-
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RGBplanar
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X
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-
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Mono8
In Mono8 format, the image data from a uEye camera are transferred and stored in monochrome format with a resolution of 8 bits per pixel.
RAW8
In RAW8 format, the image data from a uEye color camera are transferred and stored in RAW data format (Bayer RAW) with a resolution of 8 bits per pixel.
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VisionPro works with the BayerGR8 RAW format, with which green and red pixels are transferred alternately. uEye camera sensors work with a BayerRG8 RAW format, with which the red pixels are transferred before the green pixels. Therefore, in RAW8 format, the first image column is ignored. The missing data from the last image column are replaced by a copy of the previous column. It is possible that image artifacts may appear.
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RGB planar
In RGBplanar format, the image data from a uEye color camera are transferred and stored in RGB color space with a resolution of 8 bits per pixel.
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Planar color formats store the R, G, and B channels of an image separately. This means that first the red values of all image points are saved, then the green, and finally the blue values.
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