FIELD: computer equipment.
SUBSTANCE: content of the present description can be realized by using a method which involves detecting one or more blocks in an electronic image comprising text symbols, detecting one or more text blocks among blocks which contain text symbols, determining average text contrast value for each of the text blocks, detecting the type of each pixel in each of the text blocks, based on average text contrast value, performing locally-adaptive filtering in a first neighborhood of pixels around each pixel from each text block to determine pixel brightness, based on the detected type, storing, in at least one data storage device, an electronic image containing the found brightness for each pixel in each of the text blocks.
EFFECT: technical result consists in improvement of contrast and noise reduction on image.
20 cl, 4 dwg
