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我正在使用 PointGrey 相机,它返回具有以下类型的图像:

typedef struct FlyCaptureImage
{
   // Rows, in pixels, of the image.
   int iRows;
   // Columns, in pixels, of the image.
   int iCols;
   // Row increment.  The number of bytes per row.
   int iRowInc;
   // Video mode that this image was captured with.  This member is only
   // populated when the image is returned from a grab call.
   FlyCaptureVideoMode videoMode;
   // Timestamp of this image.
   FlyCaptureTimestamp timeStamp;
   // Pointer to the actual image data.
   unsigned char* pData;
   //
   // If the returned image is Y8, Y16, RAW8 or RAW16, this flag indicates
   // whether it is a greyscale or stippled (bayer tiled) image.  In all
   // other modes, this flag has no meaning.
   //
   bool bStippled;
   // The pixel format of this image.
   FlyCapturePixelFormat pixelFormat;

   // This field is always 1 for single lens cameras.  This field is 
   // used to indicate the number of images contained in the structure 
   // when dealing with multi-imager systems such as the Bumblebee2 
   // or XB3?   int iNumImages;
   int iNumImages;

   // Reserved for future use.
   unsigned long  ulReserved[ 5 ];

} FlyCaptureImage;

而我想在 OpenCV Mat 中处理图像,因此需要进行转换。我确实成功地尝试迭代图像中的每个元素以进行复制。但它很慢。所以,最好只复制指针。这是我使用 Mat 初始化的代码,就像:

MatImg = Mat::Mat(FCImg.iRows, FCImg.iCols, CV_8UC3, FCImg.pData);

请给我一些建议。这是正确的做法吗??我将此转换放在与接收返回的 Mat 图像的主程序不同的类中,例如 mycam.getframe(image)

谢谢!

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1 回答 1

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通常,每个像素的末尾都包含额外的填充像素。以字节
为单位 的完整行大小有几个名称,包括stepstepWidthstride。 在这称为行增量:。
struct FlyCaptureImageiRowInc

因此,在您的情况下,您应该指定步幅,如下所示:

cv::Mat pgImg(FCImg.iRows, FCImg.iCols, CV_8UC3, FCImg.pData, FCImg.iRowInc);
于 2013-04-23T06:31:45.087 回答