Chinese Journal of Liquid Crystals and Displays, Volume. 38, Issue 8, 1075(2023)

Design of nine-point interpolation adaptive image scaling algorithm based on FPGA

Ming-da ZHU*, Peng XIN, and Jia-ying CHANG
Author Affiliations
  • College of Information Science and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
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    Figures & Tables(14)
    Nearest neighbor algorithm
    Bilinear interpolation
    Nine-point interpolation algorithm
    Direction angel determination
    Image edge determination
    Comparison of grayscale image enlargement effect
    Overall system framework
    Algorithm logic diagram
    Modelsim simulation results
    Image scaling result graphs
    Picture zoom effect pictures
    • Table 1. Comparison of algorithm PSNR

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      Table 1. Comparison of algorithm PSNR

      测试图像最近邻域插值算法/dB双线性插值算法/dB九点插值基本算法/dB九点插值自适应算法/dB
      Lena28.754 830.949 530.038 731.109 6
      Baboon25.586 928.964 828.014 229.102 5
      Barbara27.859 129.163 928.739 729.407 3
      Goldhill29.864 931.673 831.063 132.026 1
      Peppers30.253 833.763 832.902 533.927 0
    • Table 2. Hardware resource usage table

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      Table 2. Hardware resource usage table

      算法FFLUT
      最近邻域差值算法1851 286
      双线性插值算法7128 134
      九点插值基本算法3764 274
      九点插值自适应算法5896 339
    • Table 3. PSNR value of scaled images in SD card

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      Table 3. PSNR value of scaled images in SD card

      测试图像最近邻域插值算法/dB双线性插值算法/dB九点插值基本算法/dB九点插值自适应算法/dB
      Baboon28.974 931.014 230.726 931.759 1
      Barbara30.743 932.351 832.310 232.631 8
      Goldhill32.510 834.172 934.002 134.890 4
      Peppers33.714 235.721 835.122 436.412 9
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    Ming-da ZHU, Peng XIN, Jia-ying CHANG. Design of nine-point interpolation adaptive image scaling algorithm based on FPGA[J]. Chinese Journal of Liquid Crystals and Displays, 2023, 38(8): 1075

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    Paper Information

    Category: Research Articles

    Received: Oct. 17, 2022

    Accepted: --

    Published Online: Oct. 9, 2023

    The Author Email:

    DOI:10.37188/CJLCD.2022-0338

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