public static void ReadXYZFormat(string filePath, MagnitudeRgbConversionMode mode = MagnitudeRgbConversionMode.monochromatic, bool zeroCentered = false)
{
var file = IoHelpers.GetFile(filePath);
var data = GetXyzData(filePath);
var rgbArray = ConvertToRgbArray(data, mode);
rgbArray.SaveRgbArrayAsBmpImage(Path.Combine(file.DirectoryName, $"{Path.GetFileNameWithoutExtension(file.Name)}-read_output.bmp"), zeroCentered);
}
public static RgbArray ConvertToRGBArray(this Bitmap bmp, MagnitudeRgbConversionMode colorMode = MagnitudeRgbConversionMode.realistic)
{
//https://stackoverflow.com/a/1563170
var result = new Color[bmp.Height][];
BitmapData bData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadWrite, bmp.PixelFormat);
/* GetBitsPerPixel just does a switch on the PixelFormat and returns the number */
byte bitsPerPixel = Convert.ToByte(GetBitsPerPixel(bData.PixelFormat));
if (bitsPerPixel <= 8)
{
Console.WriteLine("WARNING, WILL BLOW UP, currently supportert bmp formats with 8b/pixel or more");
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
else if (bitsPerPixel != 24)
{
Console.WriteLine("WARNING, MIGHT BLOW UP, currently tested only with 24bit bmp, should work with 16bit/pixel and higher");
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
/*the size of the image in bytes */
// stride = width * bytesPerpixel + (width % 4) - 4 because it needs to be 32-bit adressable
int size = bData.Stride * bData.Height;
/*Allocate buffer for image*/
byte[] data = new byte[size];
/*This overload copies data of /size/ into /data/ from location specified (/Scan0/)*/
System.Runtime.InteropServices.Marshal.Copy(bData.Scan0, data, 0, size);
var bytesPerPixel = bitsPerPixel / 8;
// bmp format scans starts at bottom left and goes to top right
// data[i] is the first of 3 bytes of color
// colors are in BGR format
int x = 0;
for (int y = bmp.Height - 1; y >= 0; y--)
{
result[y] = new Color[bmp.Width];
for (x = 0; x < bmp.Width; x++)
{
var strideOverhand = bmp.Width % 4;
var widthTotal = (bmp.Width * bytesPerPixel + strideOverhand);
var pixelStart = y * widthTotal + x * bytesPerPixel;
result[y][x] = GetColor(data[pixelStart + 2], data[pixelStart + 1], data[pixelStart], colorMode);
}
}
/* This override copies the data back into the location specified */
System.Runtime.InteropServices.Marshal.Copy(data, 0, bData.Scan0, data.Length);
bmp.UnlockBits(bData);
return(new RgbArray(result));
}
public static Color GetColor(int magnitude, MagnitudeRgbConversionMode conversionMode)
{
switch (conversionMode)
{
case MagnitudeRgbConversionMode.monochromatic:
return(Color.FromArgb(magnitude, magnitude, magnitude));
case MagnitudeRgbConversionMode.scaledHue:
throw new NotImplementedException("Future development");
case MagnitudeRgbConversionMode.realistic:
default:
throw new NotImplementedException("Future development");
}
}
public static Color GetColor(int r, int g, int b, MagnitudeRgbConversionMode conversionMode)
{
switch (conversionMode)
{
case MagnitudeRgbConversionMode.monochromatic:
var magnitude = (int)CS152Helpers.GetMagnitude(r, g, b);
return(Color.FromArgb(magnitude, magnitude, magnitude));
case MagnitudeRgbConversionMode.scaledHue:
throw new NotImplementedException("Future development");
case MagnitudeRgbConversionMode.realistic:
default:
return(Color.FromArgb(r, g, b));
}
}
public static RgbArray ConvertToRgbArray(SortedDictionary <float, SortedDictionary <float, float> > xyzData, MagnitudeRgbConversionMode conversionMode)
{
EnsureRectangleSymmetry(xyzData);
var xyzDataEnum = xyzData.GetEnumerator();
var firstRow = xyzData.First();
var height = xyzData.Count;
var width = firstRow.Value.Count;
var rgbArray = new Color[height][];
int count = 0;
while (xyzDataEnum.MoveNext())
{
var row = xyzDataEnum.Current;
var y = count / width;
rgbArray[height - y - 1] = new Color[width];
var rowEnum = row.Value.GetEnumerator();
while (rowEnum.MoveNext())
{
var x = count % width;
var pixel = rowEnum.Current;
var scaledMagnitude = (int)CS152Helpers.ScaleValue(pixel.Value, -11000, 8500, 0, 255);
rgbArray[height - y - 1][width - x - 1] = Bitmapper.GetColor(scaledMagnitude, conversionMode);
count++;
}
}
return(new RgbArray(rgbArray));
}
