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Ola =)

Alguem me sabe dizer um algoritmo simples e eficiente para retirar sombras no matlab??

Tenho uma imagem com várias pessoas, a qual subtrio o fundo de forma a ficar só com as pessoas, mas a sombra mantem se e queria retirá-l..

Como o faço, usando o sistema RGB? Acho que é possivel atenuando as cores, ouseja r=R/(RGB) e assim para o G e B, mas não estoua ver como implementar..

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