This paper presents a watermarking scheme that uses uniform color spaces to provide a local and adaptive embeddingudspace. The CIE-Lab and CIE-XYZ uniform color space and the CIE-94 metric have been used to extract a maskinguddomain that is adapted to each color pixel value. Calculus of the masking vector μ1 is given performing a differentialudcalculus that relies on relations between uniform color spaces and RGB space. The embedding of the watermark is afterudachieved by quantization of DCT coefficients and the whole system is evaluated for different constraints such asudinvisibility and robustness to JPEG compression, low-pass filtering and valumetric transforms. Finally the presentedudscheme is compared with other schemes that uses other color components (Luminance or Blue).
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