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Abstract. In order to improve the speed of gestures image processing in interactive projection, the paper uses field programmable logic devices to design image processing system on-chip, studies the realization method of image wavelet transform IP core, designs gesture image of Haar wavelet decomposition and reconstruction IP core based on Xilinx FPGA. The experiments show that the effect of gesture image processing using the IP core is consistent with the results of PC processing, the processing time is improved by 4.6313% compared with PC, good foundation is builded for subsequent experiments of interactive gesture recognition and matching.

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