Description: 我写的基于bandelet域的spiht图像压缩算法。效果比经典的SPIHT好。文章已发，希望代码对大家有用。-I wrote bandelet domain-based SPIHT image compression algorithm. SPIHT is better than a good classic. Article has been distributed, I hope the code useful for everyone. Platform: |
Size: 1838080 |
Author:shawn |
Hits:
Description: 由于第二代Bandelets变换是由量化步长来控制最佳Bandelet化过程，难以实现定码率图像压缩。为了解决这个问题，提
出了一种通过非线性逼近来控制最佳Bandelet化过程的方法。同时采用了沿几何流的方向小渡变换方法，直接把JPEG2000的编
解码器应用到Bandelets变换系数上进行有效的图像压缩，而无需重新构造上下文模型。实验表明，提出的压缩方法具有很好的边
缘和纹理保护能力，特别对于直线纹理图像，压缩性能优于JPEG2000标准。-Abstract：Image compression based on the second generadon Bandelets transform，whose optimized bandeletization is controlled
by quantization step，cannot realize fixed bitrate image compression．To overconae this problem。the paper presents a non-linear
approximation method to control the optimized bandeletization．Then，the oriented wavelet transform along geometric flow is adopted．
The JPEG2000 codec is direcdy employed on bandelets coefficients to implement effective image compression without changing
context model．Experiments show that the proposed compression method exceeds JPEG2000 standard in compression performance
and abil畸of image edges and texture preservation． Platform: |
Size: 319488 |
Author:lx |
Hits:
Description: 本代码是基于Bandelet的硬阈值SAR图像去噪，结果与小波变换进行对比，结果表示其在峰值信噪比，边缘保持系数上均有一定的提高。压缩包中有程序和SAR图像。-This code is based on Bandelet SAR image denoising with a hard threshold .the results were compared with the wavelet transform, and the results indicated that in the peak signal to noise ratio(PSNR)and edge-preserving index(EPI), there is a certain on the increase. There are procedures and SAR images in this compression package. Platform: |
Size: 270336 |
Author:周宇 |
Hits:
Description: 二代Bandelet变换，可以用其实现图像的稀疏表示，从而实现图像去噪，压缩等处理。-Second generation Bandelet transformation can be achieved with its sparse image, said in order to achieve the image de-noising, compression and other processing. Platform: |
Size: 1024 |
Author:Jason |
Hits:
Description: 基于Bandelet变换的图像压缩，包括基于SPIHT、霍夫曼等压缩编码解码，比较无损有损压缩。-Bandelet transform based image compression, including those based on SPIHT, Huffman compression codecs such as compare lossless lossy compression. Platform: |
Size: 1291264 |
Author:沈佳 |
Hits:
Description: 3D SPIHT algorithm I wrote bandelet domain-based SPIHT image compression algorithm. SPIHT is better than a good classic. Article has been distributed, I hope the code useful for everyone.-3D SPIHT algorithm I wrote bandelet domain-based SPIHT image compression algorithm. SPIHT is better than a good classic. Article has been distributed, I hope the code useful for everyone. Platform: |
Size: 9216 |
Author:kimhongkyu |
Hits:
Search - bandelet compression