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Thread: opencl sobel filter and theory

  1. #1

    opencl sobel filter and theory

    hello.
    i would implement and modify(for my application)the sobel filter in opencl(i saw the example in the nvidia opencl sdk and works fine), but first i would understand the theory of the sobel filter .
    where i can read about the theory?in books or google?

    thanks.

  2. #2
    Senior Member
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    Re: opencl sobel filter and theory

    Take a look at the Sobel Filter for some accessible background info, and at Image Convolution for more details about optimizing the kernel in OpenCL.

  3. #3

    Re: opencl sobel filter and theory

    thanks

  4. #4

    Re: opencl sobel filter and theory

    I'm start reading, i have a doubt:
    for understand better the sobel filter:
    The matrix system is a method for gain-time for find the edges?
    isn't possible to test pixel for pixel the difference of color of neighbors pixels and see if it's in a range and if it is select the pixel?

    it's only a compute method?
    thanks.

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