Abstract: This application discloses an image edge enhancement processing method and application thereof. This application relates to the technical field of digital image processing. The method includes: receiving an input image separated into a luminance signal and a chrominance signal; obtaining a first edge value by processing the input luminance image with a first set of parameters applicable to non-facial skin tone points, and obtaining a second edge value by processing the input luminance image with a second set of parameters applicable to facial skin tone points; obtaining a skin tone weight value for each skin tone point, and obtaining the facial skin tone weight value for each point according to the face region information of the input image; blending the first edge value with the second edge value according to the facial skin tone weight value, and combining the blended edge value with the input luminance value for edge enhancement.

Abstract: A rivet with improved structure for forming flat-bottom riveting of plates, which comprises a rivet cover, a rivet shoulder and a rivet body; specifically, the rivet cover is provided with a torque transmission structure and a positioning structure for driving the rivet to rotate; the rivet body comprises an inner cavity of the rivet body, an outer wall of the rivet body and an end of the rivet body; with the present invention, the bottom surface of the joint can be flush with the surface of the connected plates, which facilitates the subsequent processing of the coverage on the bottom surface, reduces the wind resistance coefficient of the joint, and broadens the application range of the process.

Abstract: This application discloses an image edge enhancement processing method and application thereof. This application relates to the technical field of digital image processing. The method includes: receiving an input image separated into a luminance signal and a chrominance signal; obtaining a first edge value by processing the input luminance image with a first set of parameters applicable to non-facial skin tone points, and obtaining a second edge value by processing the input luminance image with a second set of parameters applicable to facial skin tone points; obtaining a skin tone weight value for each skin tone point, and obtaining the facial skin tone weight value for each point according to the face region information of the input image; blending the first edge value with the second edge value according to the facial skin tone weight value, and combining the blended edge value with the input luminance value for edge enhancement.

Abstract: A rivet with improved structure for forming flat-bottom riveting of plates, which comprises a rivet cover, a rivet shoulder and a rivet body; specifically, the rivet cover is provided with a torque transmission structure and a positioning structure for driving the rivet to rotate; the rivet body comprises an inner cavity of the rivet body, an outer wall of the rivet body and an end of the rivet body; with the present invention, the bottom surface of the joint can be flush with the surface of the connected plates, which facilitates the subsequent processing of the coverage on the bottom surface, reduces the wind resistance coefficient of the joint, and broadens the application range of the process.