Analysis of DCT and FAST DCT using soft core processor

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Abstract
In today's scenario, there is huge involvement of transformations. These scenarios include digital signal processing and image processing. It is very essential in all sectors. Transformation techniques are useful as it makes analysis easier, reliable and relevant. Discrete cosine transform is the most important step in any signal frequency based analysis or multimedia compression and decompression methods. In this era where storage requirements are vast compression of data is urgent need of time. The DCT implementation on FPGA and its performance evaluation is focused in this paper. The fast DCT algorithm using FFT based approach is considered for improvement in performance of DCT and its FPGA implementation is verified using Nexys 4 DDR board having Artix 7 series Xilinx processor. The results obtained are analysis based on utilization overhead, power allocation scenarios and time consumption analysis which are found to be satisfactory.