A modified Sobel filter-based automated numerical algorithm enables immediate trichoscopic assessment of hair diameter diversity in male and female pattern hair loss
1 Regenerative Medicine Research & Business Development Department, Shiseido Co., Ltd., Yokohama, Japan. Electronic address: masaya.takagi@shiseido.com.
2 Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan.
3 Regenerative Medicine Research & Business Development Department, Shiseido Co., Ltd., Yokohama, Japan.
4 Department of Dermatology, Kyorin University Faculty of Medicine, Tokyo, Japan. Electronic address: manabuohy@ks.kyorin-u.ac.jp.