METHOD OF INDEXING AND SEARCHING DIGITAL IMAGES Russian patent published in 2014 - IPC G06F17/30 

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to systems for indexing and searching digital images contained in files of different graphics formats. The method involves finding a colour having the shortest Manhattan length from the found predominant colour in the selected colour coordinate system from a predetermined set of primary colours, classified according to brightness, saturation and hue; using the obtained colour as an identifier for organising the search procedure in an image database; determining colour association from the basic set of primary colours to form a visual colour similarity and visual colour contrast characteristic; generating an image index (metadata) according to the presented primary colour in RGB format and/or name and/or tag of the colour; searching images in the database. As a result of the search, a list of images is formed, having indices matching the presented index and/or indices for which primary colours are present in the list of associations of visual similarity or in the list of colour contrast for the primary colour in the image search index.

EFFECT: faster automatic and semi-automatic indexation of images and faster search of images with similar predominant colours in a database.

9 cl, 4 dwg