Digital image watermarking against photo to cartoon effects. - Piyanart Chotikawanid; Thumrongrat Amornraksa (ISPACS, 2015)

Image Watermarking Based on Reflectance Modification. - Piyanart Chotikawanid; Thumrongrat Amornraksa (IWDW, 2015)

Digital image watermarking on illumination component. - Piyanart Chotikawanid; Kharittha Thongkor; Pipat Supasirisun; Thumrongrat Amornraksa (MVA, 2015)

Improved image watermarking using guided image filtering. - Piyanart Chotikawanid; Thumrongrat Amornraksa (ICCIP, 2017)

Color image watermarking based on reflectance component modification and guided image filtering. - Piyanart Chotikawanid; Thumrongrat Amornraksa (Multim. Tools Appl., 2021)

Federated Learning for Grading Oil Palm Fruit Ripeness in the Oil Palm Industry. - Patchanee Laddawong; Yutthapong Pianroj; Piyanart Chotikawanid; Teerasak Punvichai; Saysunee Jumrat; Atitaya Kham-Ouam; Jirapond Muangprathub (Appl. Comput. Intell. Soft Comput., 2025)