我需要像图像一样可视化二进制文件(例如.exe)
此代码将字节打包成c#语言的图像:
var width = (int)Math.Sqrt(fi.Length * 8);
width = width + 8 - (width % 8);
var length = (int)(fi.Length * 8 / width);
Func<byte, int, Color> getcolor =
(b, m) => (b & m) == m ? Color.Black : Color.White;
using (var bitmap = new Bitmap(width, length + 1))
{
var buffer = File.ReadAllBytes(exefile);
int x = 0, y = 0;
foreach (var @byte in buffer)
{
bitmap.SetPixel(x + 0, y, getcolor(@byte, 0x80));
bitmap.SetPixel(x + 1, y, getcolor(@byte, 0x40));
bitmap.SetPixel(x + 2, y, getcolor(@byte, 0x20));
bitmap.SetPixel(x + 3, y, getcolor(@byte, 0x10));
bitmap.SetPixel(x + 4, y, getcolor(@byte, 0x8));
bitmap.SetPixel(x + 5, y, getcolor(@byte, 0x4));
bitmap.SetPixel(x + 6, y, getcolor(@byte, 0x2));
bitmap.SetPixel(x + 7, y, getcolor(@byte, 0x1));
x += 8;
if (x >= width)
{
x = 0;
y++;
}
}
bitmap.Save(Path.ChangeExtension(exefile, ".tif"), ImageFormat.Tiff);
}
任何人都可以给我这个代码的Matlab实现吗?
答案 0 :(得分:1)
How can I convert a binary file to another binary representation, like an image
%Matlab有功能bitget可以做你想要的。然后,您需要将所有位放在方阵中。
[f,d]=uigetfile('*.*');
fid=fopen([d,filesep,f],'r');
d = fread(fid,inf,'*uint8'); %load all data as bytes.
fclose(fid);
width = sqrt(length(d)*8);
width = width+8-mod(width,8); %make sure width is a multiple of 8
IM = false(width); %binary matrix
x=1;y=1;
for ct = 1:length(d)
v=bitget(d(ct),[1:8]);
IM(x:x+7,y)=v;
x=x+8;
if x>width
x=1;y=y+1;
end
end
imagesc(IM) %display image