A robust low frequency integer wavelet transform based fractal encryption algorithm for image steganography. - Ambika; Rajkumar L. Biradar (Int. J. Adv. Intell. Paradigms, 2021)

Hybrid image embedding technique using Steganographic Signcryption and IWT-GWO methods. - Ambika; Virupakshappa; Se-Jung Lim (Microprocess. Microsystems, 2022)

Face recognition with illumination, scale and rotation invariance using multiblock LTP-GLCM descriptor and adaptive ANN. - Sachinkumar Veerashetty; Virupakshappa; Ambika (Int. J. Syst. Assur. Eng. Manag., 2024)

A novel twin vision transformer framework for crop disease classification with deformable attention. - Smitha Padshetty; Ambika (Biomed. Signal Process. Control., 2025)