- This script implements the sobel filter for edge detection without the use of the openCV in-built functions.
- The basic principle used here is convolution.
- A kernel, a matrix of size(3X3 or 5X5) is often chosen and is convoluted over the image.(which is a matrix of pixels)
- In RGB images there are 3 channels, while in grayscale there is only 1 channel.
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To run the scripts the user needs to run - pip install opencv
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The path to the image needs to be mentioned
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The image is converted to grayscale and then blurred
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The sobel kernel in the X-direction is [-1,-2,-1,0,0,0,1,2,1]
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The sobel kernel in the Y-direction is [-1,0,1,-2,0,2,-1,0,1]
This is the example image to begin with :
This is the final image after running the filter :
