python - 运行 Hello World 程序时的 SimpleCV IOError

Question

几天来，我一直在尝试在我的 Mac 上设置 SimpleCV。我终于安装好了所有东西，但是运行 hello world 程序

from SimpleCV import Camera
# Initialize the camera
cam = Camera()
# Loop to continuously get images
while True:
    # Get Image from camera
    img = cam.getImage()
    # Make image black and white
    img = img.binarize()
    # Draw the text "Hello World" on image
    img.drawText("Hello World!")
    # Show the image
    img.show()

在他们的主页上找到返回以下错误:

  File "helloworld.py", line 13, in <module>
    img.show()
  File "/usr/local/lib/python2.7/site-packages/SimpleCV/ImageClass.py", line 5447, in show
    d = Display(self.size())
  File "/usr/local/lib/python2.7/site-packages/SimpleCV/Display.py", line 158, in __init__
    scvLogo = SimpleCV.Image("simplecv").scale(32,32)
  File "/usr/local/lib/python2.7/site-packages/SimpleCV/ImageClass.py", line 787, in __init__
    self._pil = pil.open(self.filename).convert("RGB")
  File "/usr/local/lib/python2.7/site-packages/PIL/Image.py", line 2237, in open
    fp = builtins.open(fp, "rb")
IOError: [Errno 2] No such file or directory: '/usr/local/lib/python2.7/site-packages/SimpleCV/sampleimages/simplecv.png'
Cleaned up camera.

经过大量的试验和错误，我最终得到了以下 brew 包:

atk         eigen           glib            isl         mercurial       pcre            scipy           swig
autoconf        fontconfig      gmp         jpeg            mpfr            pixman          sdl         webp
automake        freetype        gobject-introspection   libffi          numpy           pkg-config      sdl_image       xz
brew-cask       gcc         gtk+            libmpc          opencv          portmidi        sdl_mixer
cairo           gdbm            harfbuzz        libpng          openexr         pygame          sdl_ttf
cloog           gdk-pixbuf      icu4c           libtiff         openssl         python          smpeg
cmake           gettext         ilmbase         libtool         pango           readline        sqlite

和以下 pip 包:

funcsigs (0.4)
gnureadline (6.3.3)
ipython (2.3.1)
mercurial (3.2.4)
nose (1.3.4)
numpy (1.9.1)
obd (0.2.0)
Pillow (2.7.0)
pip (6.0.6)
pygame (1.9.1release)
pyparsing (2.0.3)
pyserial (2.7)
scipy (0.14.0)
setuptools (11.3.1)
SimpleCV (1.3)
six (1.9.0)
svgwrite (1.1.6)

安装在我的系统上。

Answer 1

其中一个 ubuntu/pip 软件包缺少该文件，它破坏了一切。你的文件没有问题。如果您可以从 github 源代码构建，那将是最好的选择，并且会为您提供更多模块。 This应该有帮助。