Image processing apparatus and method, computer program, and...

Details Image processing apparatus and method, computer program, and... Image processing apparatus and method, computer program, and...

2006-10-24

2006-10-24

Tran, Phuoc (Department: 2624)

Image analysis

Image compression or coding

Adaptive coding

C382S233000

Reexamination Certificate

active

07127115

ABSTRACT:
The present invention allows an image to be coded within a target size without necessitating the image to be input again during the coding of the image, with a mode reflecting a user's intention for coding. To solve this problem, input image data is coded at coding unit102and stored into first and second memories, respectively. Coding sequence unit108monitors the quantity of codes. When a set value is determined to be reached, coding sequence unit108makes data in first memory to be discarded and directs coding means to further increase a quantization step, and continues coding. As previous coded data is stored in second memory, the data is re-coded with the same quantization step as that of coding unit102after changing of a parameter at re-coding unit109, and the re-coded data is stored into first and second memory. At this moment, coding unit102and re-coding unit109perform an operation and coding on quantization error according to a mode of quantization operation designated at mode designation unit125.

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