IMAGE SIMPLIFICATION METHOD AND APPLICATION OF SAID METHOD FOR SEGMENTING AND CODING IMAGES

摘要

The invention concerns a method for constructing a simplified representation, ĝ levelling, of an original image f using a marker image g. A radiometric value being assigned to each image pixel (A) the value ĝ (x) in each pixel is deducted, in the regions where g is less than a function eta f, deducted from f, by increasing (B, C) by g of minimum amount for forming a plateau in all related particle where g< eta f, except in the zones where the increase of g is limited by the value of eta , locally less than the value of the plateau, and, in the regions where g is more than a function zeta f, deducted from f, by decreasing (C, D) by g the minimum amount for forming a plateau in all related particle where g>/= zeta f, except in the zones where the decrease by g is limited by the value of zeta f, locally more than the value of the plateau. The transformations eta and zeta verify the conditions: eta f/=f. The invention is useful for treating colour images, in particular for segmenting or compressing images.