在julia中读取二进制图像

如何在julia中读取二进制图像文件？ imread(file)给出以下错误：在julia中读取二进制图像

ERROR: type: Gray: in T, expected T<:Union(FixedPoint,FloatingPoint), got Type{Bool} 
in imread at C:\Users\Harsh\.julia\v0.3\Images\src\io.jl:259 
in imread at C:\Users\Harsh\.julia\v0.3\Images\src\io.jl:113

输出versioinfo的（真）：

julia> versioninfo(true) 
Julia Version 0.3.0 
Commit 7681878 (2014-08-20 20:43 UTC) 
Platform Info: 
    System: Windows (x86_64-w64-mingw32) 
    CPU: Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz 
    WORD_SIZE: 64 
      Microsoft Windows [Version 6.3.9600] 
    uname: MINGW32_NT-6.2 1.0.12(0.46/3/2) 2012-07-05 14:56 i686 unknown 
Memory: 7.948513031005859 GB (4763.9375 MB free) 
Uptime: 111087.5328943 sec 
Load Avg: 0.0 0.0 0.0 
Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz: 
     speed   user  nice  sys  idle  irq ticks 
#1 2195 MHz 13078796   0 2444890 22142265  348375 ticks 
#2 2195 MHz 10343718   0 1964375 25357578  165765 ticks 
#3 2195 MHz 15137796   0 1628015 20899875  89390 ticks 
#4 2195 MHz 15702750   0 1140187 20822718  73968 ticks 
#5 2195 MHz 12287718   0 1952390 23425562  52781 ticks 
#6 2195 MHz 9467671   0 1546562 26651421  49406 ticks 
#7 2195 MHz 13431750   0 1668484 22565437  36375 ticks 
#8 2195 MHz 12820796   0 1473484 23371359  30500 ticks 

    BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge) 
    LAPACK: libopenblas 
    LIBM: libopenlibm 
    LLVM: libLLVM-3.3 
Environment: 
    ANT_HOME = C:\PROGRA~1\APACHE~1.2 
    CUDA_BIN_PATH = C:\CUDA\bin64 
    CUDA_INC_PATH = C:\CUDA\include 
    CUDA_LIB_PATH = C:\CUDA\lib64 
    HOMEDRIVE = C: 
    HOMEPATH = \Users\Harsh 
    JAVA_HOME = C:\Progra~1\Java\jre6 
    PATHEXT = .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.RB;.RBW 

Package Directory: C:\Users\Harsh\.julia\v0.3 
3 required packages: 
- DataFrames     0.5.7 
- DecisionTree     0.3.4 
- Images      0.4.10 
14 additional packages: 
- ArrayViews     0.4.6 
- BinDeps      0.3.5 
- Color       0.3.8 
- DataArrays     0.2.1 
- FixedPointNumbers    0.0.4 
- GZip       0.2.13 
- Reexport      0.0.1 
- SHA       0.0.3 
- SIUnits      0.0.2 
- SortingAlgorithms    0.0.1 
- StatsBase      0.6.5 
- TexExtensions     0.0.2 
- URIParser      0.0.2 
- Zlib       0.1.7

文件是这样的二进制文件：

Image Link

原始RGB图像是这样的，（其已经被处理以获得上述文件）这不会给出错误。：

enter image description here