A method is disclosed for determining an adjustment amount to be made to an input chroma, C.sub.in, to squeeze the input chroma toward a region of preferred chroma, C.sub.pref. This method involving first defining a change in chroma as: .DELTA.C=C.sub.in-C.sub.pref and defining a chroma weight as: C.sub.weight=Gaussian(C.sub.pref,C.sub.sigma); defining a luminance weight as: L.sub.weight=Gaussian(L.sub.pref,L.sub.sigma); defining a hue weight as: H.sub.weight=Gaussian(H.sub.pref,H.sub.sigma);. Then, an amount of chroma adjustment is: C.sub.Adjust=.DELTA.C*(H.sub.weight*C.sub.weight*L.sub.weight). An output chroma is generated by applying chroma adjustment to chroma input: C.sub.out=C.sub.in-C.sub.Adjust.

 
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> Image processing device having compression judgement

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