Figure | The color image encryption system based on the PMH-SPD. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Figure | The color image encryption system based on the PMH-SPD.

Caption

Figure | The color image encryption system based on the PMH-SPD. Comparison of the decryption results between the commercial camera, PMH-SPD and Si-SPD in the presence of a scattering medium used Hadamard and Point-scan-like patterns for an encrypted color image projected by a projector. Correct information (“OK”) is hidden in the color image (mixed color consisting of red and blue, excluding green), and can be decrypted by the PMH-SPD, but not the commercial camera or the Si-SPD. DMD: digital micromirror device.

Credit

Shuang Zhang et al.

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