Method of coding a current image (IC j) partitioned previously into blocks, implementing, for a current block (CTB u) to be coded, the steps consisting in: - partitioning the current block at least once into several sub-blocks, - representing the partitioning of the current block in the form of a first digital information sequence, - predicting the partitioning of the current block with respect to the partitioning of an already coded and then decoded block (CTBr j) and represented in the form of a second digital information sequence, said coding method being characterized in that the step of predicting is implemented by inter-comparison of the first and second sequences, the first item of digital information of the first sequence being compared with the first item of digital information of the second sequence, and so on and so forth until the last item of digital information of each of the sequences, or else by inter-comparison of said corresponding partitionings, and then by determination according to a predetermined comparison criterion: - of a first item of digital information indicating whether a sub-block, arising from the partitioning of said already coded and then decoded block (CTBr j) and corresponding to a sub-block arising from the partitioning of the current block, has been partitioned identically to the sub-block arising from the partitioning of the current block, - of a second item of digital information indicating whether a sub-block, arising from the partitioning of said already coded and then decoded block (CTBr j) and corresponding to a sub-block arising from the partitioning of the current block, has been partitioned again, no item of digital information moreover being determined if neither a sub-block, arising from the partitioning of said already coded and then decoded block (CTBr j) and corresponding to a sub-block arising from the partitioning of the current block, nor said sub-block arising from the partitioning of the current block, has being partitioned again, and in that, on completion of said determination, said method of coding comprises the steps consisting in: - encoding said first and second items of digital information determined, - transmitting to a decoder a data signal containing said first and second items of digital information encoded and an item of digital information indicating whether said step of predicting the partitioning has or has not been implemented. - partitioning the current block at least once into several sub-blocks, - representing the partitioning of the current block in the form of a first digital information sequence, - predicting the partitioning of the current block with respect to the partitioning of an already coded and then decoded block (CTBr j) and represented in the form of a second digital information sequence, - of a first item of digital information indicating whether a sub-block, arising from the partitioning of said already coded and then decoded block (CTBr j) and corresponding to a sub-block arising from the partitioning of the current block, has been partitioned identically to the sub-block arising from the partitioning of the current block, - of a second item of digital information indicating whether a sub-block, arising from the partitioning of said already coded and then decoded block (CTBr j) and corresponding to a sub-block arising from the partitioning of the current block, has been partitioned again, - encoding said first and second items of digital information determined, - transmitting to a decoder a data signal containing said first and second items of digital information encoded and an item of digital information indicating whether said step of predicting the partitioning has or has not been implemented.