我在使用Python3的 MacOS上的Jupyter中运行svg_filter_line(官方示例)。
SVG与很多svg图像(例如,来自Wiki的Worldmap图像)一起使用时效果很好
svg_filter_line的原始编码也很好。
运行svg_filter_line会生成一个名为“ svg_filter_line.svg”的svg映像。
SVG无法呈现此svg图像'svg_filter_line.svg',没有错误,没有警告。
i am trying to make an edge detection that generate right image from left image in the flowing figure.
there are 3 different colorful area, so the result has 3 separated parts.
here is my code
img = cv2.imread('img2.png')
imgRGB = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
f, axs = plt.subplots(1,2,figsize=(12,8))
edges = cv2.Canny(img,1,255)
axs[0].imshow(imgRGB)
axs[1].imshow(edges,cmap = 'gray')
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here is the output
the edge of the red part in the origin image is being ignored by OpenCV, which does not meet my need.
the …
给定一个 5x4 矩阵 A =
\n\n\n\n一段构造矩阵的Python代码
\n\nA = np.array([[1, 0, 0, 0],\n [0, 0, 0, 4],\n [0, 3, 0, 0],\n [0, 0, 0, 0],\n [2, 0, 0, 0]])\nRun Code Online (Sandbox Code Playgroud)\n\nWolframalpha给出 svd 结果
\n\n\n\n具有奇异值 \xce\xa3 的向量采用这种形式
\n\n\n\n的输出中的等价数量(NumPy 称之为 s)np.linalg.svd是这种形式
[ 4. 3. 2.23606798 -0. ]\nRun Code Online (Sandbox Code Playgroud)\n\n有没有办法让 numpy.linalg.svd 的输出数量显示为 Wolframalpha?
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