Image processing apparatus utilizing the JBIG method, having a c

Details Image processing apparatus utilizing the JBIG method, having a c Image processing apparatus utilizing the JBIG method, having a c

1993-02-23

1996-03-19

Powell, Mark R.

H04N 100

Patent

active

055009239

ABSTRACT:
An image processing apparatus stores image data by compressing the image data in succession to a predetermined resolution, comparing the data before compression and the data after compression at each stage of the compressions to generate encoded data, and storing thus compressed image data and a plurality of thus generated encoded data in a memory. For image display or image output, the image data of a resolution required for such image display are prepared from the compressed image data and the encoded data stored in the memory. Thus conversion of image data from the original resolution to the resolution required in the display can be dispensed with.

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Signal Process., Image Communication, Hampel H. et al., "Technical features of the JBIG standard for progressive bi-level image progression", vol. 4, No. 2, Apr. 1992, pp. 103-111.

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