Method and integrated circuit for image manipulation

A method for manipulating an image stored in a source location and obtaining a manipulated image in a destination location, comprising:

• determining a block size in accordance with a characteristic of the image;
• for each block within the image, manipulating the block, comprising:
• determining a destination block location for the block;
• for an address sequence within the destination block location, performing:
• determining at least one addresses within the source image which contain pixels to be written at the address sequence within the destination block location;
• copying information from the source location to an on-chip memory buffer, comprising a predetermined number of memory elements arranged as a rectangle having a width being a multiple of four times an integer number equal to or larger than one, in a location corresponding to the address sequence;
• reading data from the on-chip memory buffer;
• and
• writing the data in the address sequence within the destination block location.

An integrated circuit for manipulating an image stored in a source location on a dynamic random access memory (DRAM) for obtaining a manipulated image in a destination location on the DRAM, comprising:

• on-chip memory buffers comprising a predetermined number of memory elements, the on-chip memory buffer adapted to comprise a block of data from the image;
• an address generator for determining one or more addresses within the on-chip memory buffer which contain pixels to be written at an address sequence within a destination location for the block of data;
• a controller for controlling the operation and data flow within the integrated circuit and between the integrated circuit and the DRAM;
• and
• a bus for transferring data between the integrated circuit and the DRAM.