Color Image Scrambling Technique Based on Transposition of Pixels between RGB Channels Using Knight’s Moving Rules and Digital Chaotic Map

Procedure 4

Computing limits on descrambling 𝐼₀𝑖,𝑗,∶_{1≤𝑖<𝑚1≤𝑗<𝑚},𝑅_𝑥,𝑛.

Require:    𝑥 % represents the moving rule applied on scrambling procedure

𝑥=(mod(𝑥+4),8)

Remark:    𝑥 % represents the symmetric moving rule, which is to be applied on descrambling procedure

Compute_limits_on_scrambling   𝐼₀𝑖,𝑗_{1≤𝑖<𝑚1≤𝑗<𝑚},𝑅_𝑥,𝑛