java - Coloring with flood-fill method -


i use flood-fill method simple coloring game project on android. there coloring problem. try explain problem on following images.

this empty image:

enter image description here

when start paint anywhere in head, can paint everywhere in image this: enter image description here

but if start paint outside of head, cannot paint anywhere in image follows. enter image description here

if firstly paint outside of head, cannot paint anywhere (eyes, skin, nostrils, ...)

do know problem?

the method used : https://stackoverflow.com/a/16968484/915626

thanks!


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