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VSCode python PyQt.安装PyQt5：python -m pip install --upgrade pip -i https://pypi.tuna.tsinghua.edu.cn/simple.pip install pyqt5 -i https://pypi.tuna.tsinghua.edu.cn/simpe.pip install pyqt5-tools -i https://pypi.tuna.tsinghua.edu.cn/simple.pip install numpy -i https://pypi.tuna.tsinghua.edu.cn/simple. 阅90 转0 评0 公众公开 20-10-24 23:19 |
阅1868 转8 评0 公众公开 20-06-14 17:57 |
Event()image_grabbed = Nonedef img_cb(image): global image_done global image_grabbed image_grabbed = np.flip(image, 2) image_done.set()graph = FilterGraph()graph.add_input_device(0)graph.add_sample_grabber(img_cb)graph.add_null_render()graph.prepare()graph.run()input("Press ENTER to grab photo")graph.grab_fr... 阅131 转0 评0 公众公开 20-06-03 18:40 |
Open usb camera using name instead of index in openCV3.2.When I plug it into my system, it creates two different links: /dev/video0 and /dev/video1.Now, I would like to know if it is possible to call the VideoCapture function, passing directly the name of the device, e.g., /dev/videoMine instead of the index. 阅40 转0 评0 公众公开 20-06-03 18:24 |
阅534 转0 评0 公众公开 20-05-31 10:54 |
rectangle( thresh_img_new, Point(0,0), Point(thresh_img_new.cols-1, thresh_img_new.rows-1), Scalar(255,255,255), 3, LINE_8);if (processQuads(quads, quad_count, pattern_size, max_quad_buf_size, storage, corners, out_corners, out_corner_count, prev_sqr_size))Mat thresh_img;rectangle( thresh_img, Point(0,0), Point(thresh... 阅770 转3 评0 公众公开 20-05-31 09:12 |
鲍威尔棱镜的工作原理 应用。鲍威尔棱镜像一个圆形棱镜弯曲的车顶线条。具有窄入射光束方向，光束的长轴平行于鲍威尔透镜屋顶并用产生小的聚焦深度的薄激光线。具有宽入射光束方向，光束的长轴垂直于鲍威尔棱镜屋顶和带产生大的焦点深度厚激光线。窄入射光束鲍威尔镜头光路。例如，均一性度量将取决于是否一个评估鲍威尔棱镜的投影线在机器视觉... 阅109 转0 评0 公众公开 20-05-19 15:55 |
微知识 | 一字线激光器在工业应用中的性能指标。网上流传的鲍威尔棱镜实现光束一字线原理示意图，可以看到鲍威尔棱镜有个曲线的屋脊，该屋脊曲线的加工品质将决定一字线激光的品质。一类闹心事解谜。二类闹心事解谜。这类闹心事遇到了，从用户角度就只能抓紧换厂家，选择专业的工业机器视觉激光器厂家。撇开品牌溢价，上千元的激光器，其性能指... 阅288 转1 评0 公众公开 20-05-19 15:54 |
阅318 转0 评0 公众公开 20-05-04 20:02 |
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