FIELD: technology for processing digital images, namely, encoding and decoding of images.
SUBSTANCE: in the system and the method, serial conversion and encoding of digital images are performed by means of application of transformation with superposition (combination) of several resolutions, ensuring serial visualization and reduction of distortions of image block integrity and image contour when compared to many standard data compression systems. The system contains a converter of color space, block for transformation with superposition of several resolutions, quantizer, scanner and statistical encoder. Transformation by scanning with usage of several resolutions outputs transformation coefficients, for example, first transformation coefficients and second transformation coefficients. Representation with usage of several resolutions may be produced using second transformation coefficients with superposition of several resolutions. The transformer of color space transforms the input image to representation of color space of the input image. Then, the representation of color space of input image is used for transformation with superposition of several resolutions. The quantizer receives first transformation coefficients and/or second transformation coefficients and outputs quantized coefficients for use by scanner and/or statistical encoder. The scanner scans quantized coefficients for creating a one-dimensional vector, which is used by statistical encoder. The statistical encoder encodes quantized coefficients received from quantizer and/or scanner, which results in compression of data.
EFFECT: increased traffic capacity and increased precision of image reconstruction.
27 cl, 19 dwg
