Fine-Tuning of Diffusion Models Using Perceptual-DPO for Generation of Biologically Accurate Medical Image. - Pratyush Prasad; Swapnil Bhat; Sadaf Siddiqui; Siddharth Bhatt; Mrinal Mallya; Ankush K. Somvanshi; Deval Mehta 001; Kshitij S. Jadhav (ISBI, 2026)