Table 3 Correlation values of original and encrypted images along vertical and horizontal direction.

From: A blockchain-integrated chaotic fractal encryption scheme for secure medical imaging in industrial IoT settings

Images

Horizontal direction

Vertical direction

CT scan original

0.0082

0.0019

CT scan encrypted

0.0029

0.001

Mammography original

0.0071

0.0052

Mammography encrypted

0.0010

0.0095

Cancer immunotherapy original

0.0002

0.0050

Cancer immunotherapy encrypted

0.00012

0.00102

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