Criteria of a good image testing

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Elsya Nurul Aini
Elsya Nurul Aini 2012-2-18
Dear all,,
i'm really new in image processing. So, can anyone explain to me, actually what is criteria of a good image testing, especially image testing for edge detection algorithm?? is the format file can also affect??
Thanks before :)

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回答（2 个）

David Young
David Young 2012-2-18
For one influential criterion for edge detection algorithms, and references to related work, see J. F. Canny's classic paper A computational approach to edge detection, IEEE Trans. Pattern Analysis and Machine Intelligence, pages 679-698, 1986.
The file format is, by and large, irrelevant.
Image Analyst
Image Analyst 2012-2-18
Look here at sections 6.2 and 6.2.1
6.2 Evaluation of Edge Detection Algorithms
6.2.1 Evaluations of Edge Detectors, Multiple Algorithms
http://iris.usc.edu/Vision-Notes/bibliography/contentsedge.html#Edge%20Detection%20and%20Analysis,%20Lines,%20Segments,%20Curves,%20Corners,%20Hough%20Transform
If the format didn't change the values it doesn't matter. JPG frequently introduces block artifacts if you compress too much, which can give false edges. Then, the edges between the original image and the compressed/decompressed JPGed image can be different. TIF, BMP, and PNG, and some variants of JPG2000 are lossless. (I know David already knows this).

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