如何将具有16位整数的图像转换为QPixmap

Question

I am working with software that has a proprietary image format. I need to be able to display a modified version of these images in a QT GUI. There is a method (Image->getpixel(x,y)) that returns a 16 bit integer (16 bits per pixel). To be clear, the 16 bit number does not represent an RGB color format. It literally represents a measurement or dimension to that particular point (height map) on the part that is being photographed. I need to take the range of dimensions (integers) in the image and apply a scale to be represented in colors. Then, I need to use that information to build an image for a QPixmap that can be displayed in a Qlabel. Here is the general gist...

QByteArray Arr;
unsigned int Temp;
for (int N = 0; N < Image->GetWidth(); N++) {
    for (int M = 0; M < Image->GetHeight(); M++) {
        Temp = Image.GetPixel(N,M);
        bytes[0] = (Temp >> 8) & 0xFF;
        bytes[1] = Temp & 0xFF;
        Arr.push_back(bytes[0]);
        Arr.push_back(bytes[1]);
    }
}

// Take the range of 16 bit integers.  Example (14,982 to 16,010)
// Apply a color scheme to the values
// Display the image
QPixmap Image2;
Image2.loadFromData(Arr);
ui->LabelPic->setPixmap(Image2);

Thoughts?

This screenshot is an example of what I am trying to replicate. It is important to note that the coloration of the image is not inherent to the underlying data in the image. It is the result of an application scaling the height values and applying a color scheme to the range of integers.

Answer 1

The information on proprietary image format is limited so the below is guess or thought (as requested) according to explanation above:

QImage img(/*raw image data*/ (const uchar*) qbyteArr.data(),
   /*columns*/ width, /*height*/ rows,
   /*bytes per line*/ width * sizeof(uint16),
   /*format*/ QImage::Format_RGB16); // the format is likely matching the request

QPixpam pixmap(img);                 // if the pixmap is needed

Answer 2

I found pieces of the answer here.

Algorithm to convert any positive integer to an RGB value

As for the actual format, I chose to convert the 16 bit integer into a QImage::Format_RGB888 to create a heat map. This was accomplished by applying a scale to the range of integers and using the scale to plot different color equations.