搜索资源列表
-
0下载:
实现jpeg图像解码功能。
代码设计思路:1, Reconstruct the Huffman/RLE stream to a sequence
2, Arrange the sequence to a matrix using the zigzag scanning backwards
3, Multiply the matrix by quantization table
4, Perform inverse DCT
5, Shift the val
-
-
1下载:
8*8矩阵dct变换以及量化 反量化和反dct变换,8* 8 transform and quantization matrix dct quantization and anti-anti-dct transform
-
-
2下载:
编程实现基于8×8子块的DCT图像变换,基于JPEG量化矩阵的量化与反量化,基于8×8子块DCT的图像重建;以一幅512×512、8比特/象素的图像为实验对象,计算重建后的PSNR。-Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8
-
-
0下载:
根据jepg压缩的基本原理,先进行分块,该
模拟JPEG压缩过程
实验读取的是图像前4*4的小块,然后对其进行DCT变换,将空间域变换到频域中,再除以量化系数,减小数据量。并进行取整操作。然后根据量化后的数值矩阵进行解码操作。-First conduct a block, the experiment is to read the image the first 4* 4 small pieces, then its DCT transform, the space domain to
-
-
0下载:
理解使用向量量化进行图像量化的原理:对序列中的许多样本进行联合量化,用一个值代替相似的一组值,减少量化误差;
掌握向量量化器码书设计的方法,此次实验使用LBG算法设计码书;
3. 对LBG算法的理解和使用;
4.Matlab矩阵数据的处理。-Understood that the use of vector quantization for image quantized principle: a number of samples of the sequence are joint
-
-
0下载:
利用函数dct2,对图像进行压缩。并使用量化方法,对每一个经DCT变换后的8×8 矩阵量化,从而实现图像压缩。-Use function dct2, the image compression. And the use of quantitative methods, each DCT transformed matrix 88 after quantization, in order to achieve image compression.
-
-
0下载:
灰度共生矩阵建立在估计图像的一阶组合条件概率密度函数的基础上, 其通过计算图像中有一定距离和一定方向的两点之间灰度的相关性, 反映图像在方向、间隔、变化幅度及快慢上的综合信息。-The GLCMs are stored in a i x j x n matrix, where n is the number of GLCMs calculated usually due to the different orientation and displacements used in the alg
-