New Image Edge Detection Approach by Using Grey Entropy

2009 ◽  
Author(s):  
Gang Li ◽  
Yala Tong ◽  
Xinping Xiao
Keyword(s):  
Edge Detection ◽  
Image Edge Detection ◽  
Detection Approach ◽  
Image Edge

Approach of Image Edge Detection Based on Wavelet Scale Multiplication

2011 ◽  
Vol 130-134 ◽  
pp. 4282-4285
Author(s):  
Guo Sheng Xu
Keyword(s):  
Edge Detection ◽  
Wavelet Transforms ◽  
Low Contrast ◽  
Dyadic Wavelet ◽  
Image Edge Detection ◽  
Detection Approach ◽  
Product Function ◽  
Edge Points ◽  
Image Edge ◽  
Contrast Image

Edge detection is one of the most important techniques in image processing. A new image edge detection approach is presented by wavelet scale multiplication, which has the advantage of magnifying the edge structures and suppressing the noise. The dyadic wavelet transforms at tow adjacent scales are multiplied as product function and image edge is detected by wavelet model maximum. It need not link edge points, realize simply and is usually applied to noisy, low contrast image.

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