Visual inspection method for underwater culvert inner wall image defects
A visual detection and defect technology, which is applied in the field of visual detection of image defects on the inner wall of underwater culverts, can solve the problems of not being able to obtain the form of underwater culvert cracks and accurate extraction, and achieve fast detection, economical and reasonable maintenance, and fast and efficient detection. Effect
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[0023] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the protection scope of the present invention.
[0024] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0025] An embodiment of the present invention provides a visual inspection method for image defects on the inner wall of an underwater culvert, comprising the following steps:
[0026] Firstly, uniform light processing and image enhancement preprocessing are performed on the image, and the preprocessed defect image is divided into non-overlapping image blocks of the same size; secondly, the gray-scale feature space of the defect image is constru...
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