c＃-X位图处理器不起作用
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我最近一直在研究图像处理器，并决定查看旧的XBitmap文件格式（XBM）。我正在使用C＃将这些文件中的像素数据复制到位图。我设法设置了算法，该算法在理论上似乎可以正常工作，但显示不正确。对于任何不知道的人，XBM是ACSII C文件，其中包含字节数组，并显示单色数据。以下是我的算法，因此，如果有人可以指出正确的方向，我将非常高兴。
抱歉，有点逐字记录，但这是整个解码器：
string input = File.ReadAllText(fname);
using (StreamReader r = new StreamReader(fname))
{
int i = input.IndexOf(\'{\');
string bytes = input.Substring(i+1);
int j = bytes.IndexOf(\'}\');
bytes = bytes.Remove(j-1);
string[] StringArray = bytes.Split(new string[] { \",\" }, StringSplitOptions.RemoveEmptyEntries);
byte[] pixels = new byte[StringArray.Length];
for (int k = 0; k < StringArray.Length; k++)
{
byte result;
StringArray[k] = StringArray[k].Replace(\"0x\", \"\");
StringArray[k] = StringArray[k].Replace(\"\\r\", \"\");
StringArray[k] = StringArray[k].Replace(\"\\n\", \"\");
StringArray[k] = StringArray[k].Trim();
bool result1 = byte.TryParse(StringArray[k], NumberStyles.HexNumber, CultureInfo.CurrentCulture, out result);
if (result1)
pixels[k] = result;
else
throw new Exception();
}
xBits = System.Runtime.InteropServices.Marshal.AllocHGlobal(pixels.Length);
System.Runtime.InteropServices.Marshal.Copy(pixels, 0, xBits, pixels.Length);
}
return xBits;
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疾很毋悲
//Sample data from http://en.wikipedia.org/wiki/X_BitMap int Width = 16; int Height = 7; byte[] test_bits = { 0x13, 0x0, 0x15, 0x0, 0x93, 0xcd, 0x55, 0xa5, 0x93, 0xc5, 0x0, 0x80, 0x0, 0x60 }; //Create our bitmap using (Bitmap B = new Bitmap(Width, Height)) { //Will hold our byte as a string of bits string Bits = null; //Current X,Y of the painting process int X = 0; int Y = 0; //Loop through all of the bits for (int i = 0; i < test_bits.Length; i++) { //Convert the current byte to a string of bits and pad with extra 0\'s if needed Bits = Convert.ToString(test_bits[i], 2).PadLeft(8, \'0\'); //Bits are stored with the first pixel in the least signigicant bit so we need to work the string from right to left for (int j = 7; j >=0; j--) { //Set the pixel\'s color based on whether the current bit is a 0 or 1 B.SetPixel(X, Y, Bits[j] == \'0\' ? Color.White : Color.Black); //Incremement our X position X += 1; } //If we\'re passed the right boundry, reset the X and move the Y to the next line if (X >= Width) { X = 0; Y += 1; } } //Output the bitmap to the desktop B.Save(System.IO.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop), \"Output.bmp\"), System.Drawing.Imaging.ImageFormat.Bmp); }