Is there any command to find perimeter of detected edges after performing edge detection? Can I use perimeter as a metric to compare edge detection performance?

Can I say, more perimeter better edge detection.

Answer 1

[Image Analyst]

You can take the mean of the image to get an idea of how many edges there are and how strong they are. This is not necessarily an indicator of how well it found the edges that are of interest to you. Perhaps it found too many or too few, not the ideal number of edges that you'd want. That is a judgement call only you can make.

[Pushpajit Khaire]

Comparison using ground truth of images, does it provide better comparison? your opinion and suggestions

Comparison of Edge Detectors file, edgecomp.m

This Program Compares Edge Detection methods ( Canny and Sobel)using Ground Truth of images.

The details are in "A Fuzzy Set Approach for Edge Detection", Pushpajit A. Khaire & Dr. N. V. Thakur. International Journal of Image Processing (IJIP), Volume (6): Issue (6), 2012.

Answer 2

[Pushpajit Khaire]

Try out Comparison of Edge Detectors file, edgecomp.m

This Program Compares Edge Detection methods ( Canny and Sobel)using Ground Truth of images.

The details are in "A Fuzzy Set Approach for Edge Detection", Pushpajit A. Khaire & Dr. N. V. Thakur. International Journal of Image Processing (IJIP), Volume (6): Issue (6), 2012.

[Prathusha Reddy]

sir How can compare my method and existing method ? My proposed method and I have in hand all sobel, prewitt, canny edge detected images ? Can I draw a graph using any parameter

[Image Analyst]

Step 1: download/buy the paper and read it. Step 2: code it up.