get QImage object from buffer

[Sheng]

my code:

//change 16 bit gray scale to 8 bit gray scale
   for(int i=0;i<IMAGE_WIDTH*IMAGE_HEIGHT;i++)
           imageBuffer[i]= (*((uint16_t *)(imageBuffer+2*i)))/4;
 
//get QImage object from the buffer, this might be wrong
        QImage image(imageBuffer,IMAGE_WIDTH,IMAGE_HEIGHT,QImage::Format_Indexed8);
 
//rescale the image
        QImage smallImg=image.scaled(600,300);
 
//use QLabel object to show the image
        labelImage->setPixmap(QPixmap::fromImage(smallImg));

//change 16 bit gray scale to 8 bit gray scale
   for(int i=0;i<IMAGE_WIDTH*IMAGE_HEIGHT;i++)
           imageBuffer[i]= (*((uint16_t *)(imageBuffer+2*i)))/4;

//get QImage object from the buffer, this might be wrong
        QImage image(imageBuffer,IMAGE_WIDTH,IMAGE_HEIGHT,QImage::Format_Indexed8);

//rescale the image
        QImage smallImg=image.scaled(600,300);

//use QLabel object to show the image
        labelImage->setPixmap(QPixmap::fromImage(smallImg));

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