Anti-dazzle circular daily ceramic device applique out-of-bound detection method

Abstract

The invention discloses an anti-dazzle circular daily ceramic device applique out-of-bound detection method. The method comprises the steps of: first, obtaining a dazzle-free original ceramic grayscale image in the low-light condition through a camera; second, obtaining a grayscale enhanced image which is apparent in contrast; third, obtaining a binary image through a threshold segmentation technology; fourth, filling the outermost boundary inner area; fifth, obtaining a second outer boundary with probable out-of-bound patterns through an image residual error technology; sixth, filling the inner area of the second outer boundary and obtaining the contour of the second outer boundary through a boundary extraction operator; seventh, determining the center of the circular ceramic device and drawing a radius curve, a radius residual error curve and a radius residual error power exponent curve; eighth, positioning the out-of-bond patterns and measuring the dimension. The method is efficient and convenient, simple and convenient to operate and provided with broad market prospects.

Description

technical field

[0001] The invention relates to the technical field of image processing, in particular to a decal out-of-bounds detection method for an anti-glare round ceramic device for daily use. Background technique

[0002] As a traditional industry, the production process of ceramic utensils has the characteristics of low toughness, special production technology, and difficult quality control during batch production. In order to improve the yield rate of products and enhance the competitiveness of enterprises, most manufacturers will set up product quality inspection departments. However, the detection of defects in daily-use ceramics in most enterprises still remains at the level of manual naked eye detection. The detection efficiency is low, the labor intensity is high, the product quality is unstable, and the high missed detection rate has become a major criticism.

[0003] At present, with the advancement of industrial modernization, the detection technology based...

Examples

Embodiment Construction

[0053] The following describes how to use the entire circular ceramic device pattern out-of-bounds detection scheme.

[0054] Place the industrial camera and light source directly above the inspected ceramic device, and then use computer control to obtain images of the ceramic. In order to better distinguish the inspected ceramics from the background, white ceramics can be placed on the black production line. In order to prevent the occurrence of ceramic glare, adjust the ambient light to a weak level. The following is the implementation method of ceramic applique boundary defect detection:

[0055] 1) Use the camera to obtain the original ceramic grayscale image under low light conditions, such as figure 1 shown;

[0056] 2) Design the transfer function of homomorphic filtering And give the corresponding parameter values, such as high-frequency weight , low frequency weight , cut-off frequency ,Such as figure 2 As shown, and for the original ceramic grayscale ima...

technical field

[0001] The invention relates to the technical field of image processing, in particular to a decal out-of-bounds detection method for an anti-glare round ceramic device for daily use. Background technique

[0002] As a traditional industry, the production process of ceramic utensils has the characteristics of low toughness, special production technology, and difficult quality control during batch production. In order to improve the yield rate of products and enhance the competitiveness of enterprises, most manufacturers will set up product quality inspection departments. However, the detection of defects in daily-use ceramics in most enterprises still remains at the level of manual naked eye detection. The detection efficiency is low, the labor intensity is high, the product quality is unstable, and the high missed detection rate has become a major criticism.

[0003] At present, with the advancement of industrial modernization, the detection technology based...

Examples

Embodiment Construction

[0053] The following describes how to use the entire circular ceramic device pattern out-of-bounds detection scheme.

[0054] Place the industrial camera and light source directly above the inspected ceramic device, and then use computer control to obtain images of the ceramic. In order to better distinguish the inspected ceramics from the background, white ceramics can be placed on the black production line. In order to prevent the occurrence of ceramic glare, adjust the ambient light to a weak level. The following is the implementation method of ceramic applique boundary defect detection:

[0055] 1) Use the camera to obtain the original ceramic grayscale image under low light conditions, such as figure 1 shown;

[0056] 2) Design the transfer function of homomorphic filtering And give the corresponding parameter values, such as high-frequency weight , low frequency weight , cut-off frequency ,Such as figure 2 As shown, and for the original ceramic grayscale ima...

Images