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 θf, deducted from f, by increasing (B, C) by g of minimum amount for forming a plateau in all related particle where g∫θf, except in the zones where the increase of g is limited by the value of θ, locally less than the value of the plateau, and, in the regions where g is more than a function zf, deducted from f, by decreasing (C, D) by g the minimum amount for forming a plateau in all related particle where g≥zf, except in the zones where the decrease by g is limited by the value of zf, locally more than the value of the plateau. The transformations θ and z verify the conditions: θf≤f and z≥f. The invention is useful for treating colour images, in particular for segmenting or compressing images.