Canny Edge detection - Implemented with Gaussian Blur, and sobel filter library. (temporarilly)

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Canny Edge detection - Implemented with Gaussian Blur, and sobel filter library. (temporarilly).

I will change it If I implemented sobel filter and gaussian blur function

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https://docs.opencv.org/2.4/doc/tutorials/imgproc/imgtrans/canny_detector/canny_detector.html