Question

您好我是OpenCV的新手，我正在尝试使用OpenCV演示代码进行模糊检测，但每次运行代码时都会出错。

以下是我尝试运行的代码：

    # import the necessary packages
from imutils import paths
import argparse
import cv2

def variance_of_laplacian(image):
    # compute the Laplacian of the image and then return the focus
    # measure, which is simply the variance of the Laplacian
    return cv2.Laplacian(image, cv2.CV_64F).var()


# construct the argument parse and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--images", required=True,
                help="path to input directory of images")
ap.add_argument("-t", "--threshold", type=float, default=100.0,
                help="focus measures that fall below this value will be considered 'blurry'")
args = vars(ap.parse_args())
# loop over the input images
for imagePath in paths.list_images(args["images"]):
    # load the image, convert it to grayscale, and compute the
    # focus measure of the image using the Variance of Laplacian
    # method
    image = cv2.imread(imagePath)
    gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
    fm = variance_of_laplacian(gray)
    text = "Not Blurry"

    # if the focus measure is less than the supplied threshold,
    # then the image should be considered "blurry"
    if fm < args["threshold"]:
        text = "Blurry"

    # show the image
    cv2.putText(image, "{}: {:.2f}".format(text, fm), (10, 30),
                cv2.FONT_HERSHEY_SIMPLEX, 0.8, (0, 0, 255), 3)
    cv2.imshow("Image", image)
    key = cv2.waitKey(0)

我通过执行以下命令运行代码：

python detect_blur.py --images images

这是我的终端输出：

OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvShowImage, file /Users/travis/build/skvark/opencv-python/opencv/modules/highgui/src/window.cpp, line 583
Traceback (most recent call last):
  File "detect_blur.py", line 37, in <module>
    cv2.imshow("Image", image)
cv2.error: /Users/travis/build/skvark/opencv-python/opencv/modules/highgui/src/window.cpp:583: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvShowImage

我已经安装了GTK +和pkg-config但我仍然遇到同样的错误。我不知道下一步该做什么。我相信问题不在于代码，而在于安装

这是我安装OpenCV的教程 http://www.pyimagesearch.com/2016/12/19/install-opencv-3-on-macos-with-homebrew-the-easy-way/

Answer 1

您可能正在使用/usr/bin/java，它不支持许多功能。您必须卸载opencv-python，然后重新安装或重建OpenCV。

opencv-python

在Mac OS上，您可以使用

重新安装OpenCV

pip uninstall opencv-python

确保使用正确的Python，您可能使用brew，pyenv或anaconda安装了不同版本的Python。通过执行以下操作检查您正在使用的brew uninstall opencv3 brew install opencv3 --with-ffmpeg -v：

which python

其中which python来自brew，您将从路径中显示的关键字中了解其他内容。

打开CV libgtk2.0-dev和pkg-config error mac

1 个答案: