The Use Of Hybrid Technique: Thresholding And Edge Detection For Identifying River From Aerial Photo

Abstract

The Field Of Image Processing Is A Broad Field With Many Applications In Science And Industry. Image Processing Is Used To Manipulate And Enhance An Image, Which Ease The Next Process. This Research Involves The Use Of A Hybrid Techniques, Which Is A Combination Of Thresholding And Sobel Edge Detection Technique, To Recognize A River From A Grey Scale Image. Thresholding Technique Is Used To Reduce Non-Maxima Pixels, Weak Edges And Noise, Whilst The Edge Detection Technique Is Used To Detect Location Of The Edges. The Output From This Hybrid Technique Is Compared To The Existing Techniques Such As Sobel, Prewitt, Laplacian, And Robert Cross Technique.