| 摘要 |
PROBLEM TO BE SOLVED: To provide a picture processing method for reducing cost of a processor and to provide a picture processor by executing a picture rotation processing through a use of a memory of small capacity. SOLUTION: Pixel data which is read in a line unit in a read part 2 is stored in grid line buffers 7a and 7b for m-lines. Pixel data for m-lines is divided into blocks at every n-pixels in a main scanning direction. An encoding part 3 executes encoding for respective block units and data are accumulated in an accumulation memory 9. Encoded data are decoded in the block unit in a decoding part 4 and picture element data of m-pixels×n-pixels is rotated in a 90 deg. unit. The respective blocks are decoded in a prescribed order different from an encoding order in accordance with the rotation angle of the designated restored picture and a conversion processing to pixel array corresponding to the rotation angle of the designated restored picture is execute. Data is stored in a line buffer 8 from the prescribed direction corresponding to the rotation direction and pixel data of n.lines or m.lines are sequentially generated.
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