Fractal-coding addressing of reference block memories
AssigneeSTMicroelectronics S.r.l.
InventorsJean Nicolai, Marie Rimpault
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Abstract
The storage of values of a range block and of seven isometries used in a fractal image compression method, comprising using four memory areas of identical sizes in which are respectively stored the identity, and three first isometries corresponding to the isometries of symmetry with respect to the vertical axis, of 270° rotation, and of 90° rotation.
Claims10
A method for storing values of a range block and of seven isometrics used in a fractal image compression method, comprising using only four memory areas of identical sizes in which are respectively stored an identity, and three first isometrics corresponding to isometrics of symmetry with respect to a vertical axis, a 270° rotation, and a 90° rotation.
A method, comprising:
- obtaining a reference block of pixels from an image;
- performing transformation on the reference block to obtain a plurality of isometrics corresponding to isometrics of symmetry with respect to at least one axis and with respect to at least one rotation of the reference block;
- and
- storing values representative of the reference block and values representative of the isometries, said storing including respectively storing said values representative of the reference block and said values, which are representative of three of the isometries, in only four memory areas.
Dependencies are inferred from the claim text.