PROVIDING ACCURACY INFORMATION IN IMAGE ENCODING DEVICE, METHOD AND PROGRAM OF IMAGE ENCODING, IMAGE DECODING DEVICE AND METHOD AND PROGRAM FOR DECODING IMAGES Russian patent published in 2017 - IPC H04N19/61 H04N19/18 H04N19/124 

FIELD: physics.

SUBSTANCE: image encoding device contains a predicting module configured to perform prediction for the received image to generate the prediction errors on the basis of the predicted image; a conversion module configured to perform an orthogonal transformation in respect of the prediction errors to generate the transformation coefficients; a quantization module configured to perform quantization in respect of the said transformation coefficients to generate the quantization coefficients; the first encoding module configured to encode the quantization coefficients; the second encoding module configured to encode the information indicating, at least, one of the range, in which the transformation coefficients are taken, and the range, in which the quantization coefficients are taken.

EFFECT: improving the image quality.

25 cl, 25 dwg