MATLAB implementation of SPIHT (without Arithmatic coding stage). ％ Performance evaluation : this toolbox VS. SPIHT ％ Test image: lena512.raw ％ bpp SPIHT(dB) This code(dB) ％ 0.1000 29.8107 29.3202 ％ 0.2000 32.7202 32.2514 ％ 0.3000 34.5

采用压缩比和信噪对压缩效果进行评价。主要从是否含有噪声和图像格式不同两方面对比，评价图像压缩效果。-Compression ratio and signal-to-noise compression were evaluated. Contrast mainly from the presence of noise and image formats, the evaluation image compression effect.