SPLITTING IMAGES INTO SEPARATE COLOR LAYERS Russian patent published in 2023 - IPC G06V10/56 

FIELD: image processing.

SUBSTANCE: method, a data carrier and an image processing system. The method for obtaining a document image by a data processing device; dividing the document image into a plurality of patches, each of which is an image area containing an image object; determining for each patch whether the given patch is monochrome or non-monochrome; clustering the plurality of monochrome patches into a plurality of clusters in a colour space, each cluster corresponding to one colour layer of the plurality of colour layers of the document image; segmenting each non-monochrome patch into a corresponding set of monochrome segments; linking, for each non-monochrome patch, each monochrome segment of the corresponding plurality of monochrome segments to a cluster of the plurality of clusters; and using the plurality of clusters to perform the task of extracting information from the document image.

EFFECT: increasing the accuracy of object recognition in the image by dividing the image into colour layers and extracting information from the image using the selected colour layers.

20 cl, 10 dwg