How could I handle gray bitmap raw data? Could you help me please?

awesomesean

Dear guys,

I am receiving gray bitmap raw data from device to *void value. Then I need to show bitmap data using label control.

I will show you code.
@
typedef enum tagIBScanUImageFormat
{
IBSU_IMG_FORMAT_GRAY, ///< Gray scale image
IBSU_IMG_FORMAT_RGB24, ///< 24 bit RGB color image
IBSU_IMG_FORMAT_RGB32, ///< True color RGB image
IBSU_IMG_FORMAT_UNKNOWN ///< Format not set or unknown
}
IBSU_ImageFormat;

/// Container to hold image data together with meta information.
typedef struct tagIBSU_ImageData
{
void* Buffer; ///< Pointer to image buffer
DWORD Width; ///< Image horizontal size
DWORD Height; ///< Image vertical size
double ResolutionX; ///< Horizontal image resolution (in PPI)
double ResolutionY; ///< Vertical image resolution (in PPI)
double FrameTime; ///< Image acquisition time (in seconds)\n
///< This value contains the time taken for acquisition
///< from device (excluding processing time).
int Pitch; ///< Image line pitch (in Bytes).\n
/// Positive values indicate top down line order,
/// Negative values mean bottom up line order
BYTE BitsPerPixel; ///< Number of Bits per pixel
IBSU_ImageFormat Format; ///< Image color format
BOOL IsFinal; ///< Marks image as finally processed\n
/// A value of "FALSE" disqualifies image for further processing.
/// (e.g. interim or preprocessed result images)
// int PollingTimeForGetImag; /// For Polling time for getting image

}
IBSU_ImageData;
@
Above is struct for image data from device.
And
@
void* Buffer;
@
is buffer for raw data from device.

Then, I used c++ library to get raw data from device.

So, how could I see this gray bitmap raw data at label control?

I used "StretchDIBits" function in my other MFC appliction.
Is there any function like a "StretchDIBits" function?

Thanks,

hipersayan_x

It's easy. supposing that each pixel has a 24 bits depth, then you can do:

@
pixmap = QPixmap::fromImage(QImage((const uchar *) IBSU_ImageData.Buffer,
IBSU_ImageData.ResolutionX,
IBSU_ImageData.ResolutionX,
QImage::Format_RGB888));

label.setPixmap(pixmap);
@

awesomesean

Thank you!!