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EFFICIENT REALIZATION OF JPEG ENCODER FOR IMAGE COMPRESSION ON FPGA

Journal: International Journal of Electronics, Communication & Instrumentation Engineering Research and Development (IJECIERD) (Vol.4, No. 4)

Publication Date:

Authors : ; ;

Page : 35-44

Keywords : DCT; JPEG Encoder; Zigzag; Quantization; VLC; Compression Ratio;

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Abstract

The JPEG encoder is a major component in JPEG standard which is used in image compression. A complex sub-block DCT (Discrete Cosine Transform) is involved with other coding blocks such as Zigzag, Entropy and Quantization. Using two 1 dimensional DCTs connected by a transpose buffer, 2 dimensional DCT is computed. Hardware implementation of pipelined 2 dimensional DCT is designed in this work. The architecture uses 4059 slices, 6885 LUT, 58 I/Os of Xilinx Spartan-6 XC6SLX16 FPGA and works at an operating frequency of 120 MHz.

Last modified: 2014-10-28 20:29:12