enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Canny edge detector - Wikipedia

    en.wikipedia.org/wiki/Canny_edge_detector

    The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. Canny also produced a computational theory of edge detection explaining why the technique works.

  3. Edge detection - Wikipedia

    en.wikipedia.org/wiki/Edge_detection

    Edge detection includes a variety of mathematical methods that aim at identifying edges, defined as curves in a digital image at which the image brightness changes ...

  4. Marr–Hildreth algorithm - Wikipedia

    en.wikipedia.org/wiki/Marr–Hildreth_algorithm

    The Marr–Hildreth edge detection method is simple and operates by convolving the image with the Laplacian of the Gaussian function, or, as a fast approximation by difference of Gaussians. Then, zero crossings are detected in the filtered result to obtain the edges.

  5. Sobel operator - Wikipedia

    en.wikipedia.org/wiki/Sobel_operator

    A color picture of an engine The Sobel operator applied to that image. The Sobel operator, sometimes called the Sobel–Feldman operator or Sobel filter, is used in image processing and computer vision, particularly within edge detection algorithms where it creates an image emphasising edges.

  6. Kernel (image processing) - Wikipedia

    en.wikipedia.org/wiki/Kernel_(image_processing)

    In image processing, a kernel, convolution matrix, or mask is a small matrix used for blurring, sharpening, embossing, edge detection, and more. This is accomplished by doing a convolution between the kernel and an image. Or more simply, when each pixel in the output image is a function of the nearby pixels (including itself) in the input image ...

  7. PhyCV - Wikipedia

    en.wikipedia.org/wiki/PhyCV

    We use the Jetson Nano (4GB) with NVIDIA JetPack SDK version 4.6.1, which comes with pre- installed Python 3.6, CUDA 10.2, and OpenCV 4.1.1. We further install PyTorch 1.10 to enable the GPU accelerated PhyCV. We demonstrate the results and metrics of running PhyCV on Jetson Nano in real-time for edge detection and low-light enhancement tasks.

  8. Kirsch operator - Wikipedia

    en.wikipedia.org/wiki/Kirsch_operator

    The operator takes a single kernel mask and rotates it in 45 degree increments through all 8 compass directions: N, NW, W, SW, S, SE, E, and NE. The edge magnitude of the Kirsch operator is calculated as the maximum magnitude across all directions:

  9. Hessian affine region detector - Wikipedia

    en.wikipedia.org/wiki/Hessian_Affine_region_detector

    The Hessian affine region detector is a feature detector used in the fields of computer vision and image analysis.Like other feature detectors, the Hessian affine detector is typically used as a preprocessing step to algorithms that rely on identifiable, characteristic interest points.