We developa clustereddithering methodthatusesstochasticscreening and is able to perform an adaptive variation of the cluster size. This makes it possible to achieve optimal rendition of gray shades while preserving image details. The algorithm is an improvement to the dithering with space filling curves method, published in [3]. CR Descriptors: B.4.2 [Input/Output and Data Communications]: Input-Output Devices - Image Display; I.3.3 [Computer Graphics]: Picture/image generation - Display algorithms; I.3.6 [Computer Graphics]: Methodology and Techniques; I.4.3 [Image Processing]: Enhancement.