The artistic dot which has microscopic security features is designed based on threshold matrices screening method

then the hidden information is loaded into the plate incorporating microstructure dots using halftone information hiding technology

and research its potential application value. Halftone processing to get halftone images

the plate loaded hidden information is screened by a modified threshold matrix. Then

the information is embedded into the plate incorporating microstructure dots

when the revealing layer with matching parameters is superposed on it the hidden information can be realized

and the quality of information hiding and extraction is evaluated. Through the information hiding and extraction experiment

the subjective visual evaluation results show that the information hiding effect on microstructure dot achieved good visual performance both in single channel and multiple channels. The same conclusion was obtained by quantitative evaluation

which reached over 0.995 of SSIM. Furthermore

information extracting achieved a clear and complete effect. The security standard

efficiency

and added value of print and package products are improved with nearly no increase in cost. In particular

the proposed technique has extensive application prospects and value in the counterfeiting of security documents

such as banknotes

checks

certificates

and travel documents

as well as in valuable products

such as the packages of electronic image publishing products

medical drugs

and food products.