This　paper　proposes　a　watermarking　technique　based　on　texture　classification　for　image　in　finite　ridgelet　transform　domain.　The　texture　classification　for　image　is　accomplished　by　using　the　ridgelet　transform.　Significant　sub-blocks　of　the　images　are　determined　according　to　the　texture　classification　automatically.　Watermarks　are　inserted　in　locations　which　are　identified　by　ridgelet　coefficients　corresponding　to　the　strong　image　texture.　Experiments　show　that　the　proposed　method　can　achieve　a　better　tradeoff　between　the　robustness　and　invisibility.