搜索资源列表
yuv_fdct_test
- 该程序将YUV文件DCT 量化然后HUffman编码 然后再做反运算~还原成YUV文件 -the program will document YUV DCT quantization coding then HUffman then take anti-Operational ~ 10% reduction YUV documents
JPEGDCTEncodingC++
- JPEG DCT量化编码 C++程序,对学习图像压缩编码的过程和具体实现很有帮助。-JPEG DCT quantization coding C program, to learn image coding process and to achieve specific helpful.
H264中的整数DCT变换编码及量化代码
- H264中的整数DCT变换编码及量化代码,并附有原文的DCT编码、量化的说明文档。本源码从X264及JM中抽取后整理得来,并用原文档中的示例数据进行了测试,与原文档结果完全一样,是学习H.264不可多得的参考资源.
DCT量化 数字水印
- 基于DCT域 数字水印源码
8*8矩阵dct变换以及量化 反量化和反dct变换
- 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
JPEGcompression.rar
- 1.首先通过DCT变换去除数据冗余; 2.使用量化表对DCT系数进行量化; 3.对量化后的系数进行Huffman编码。 具体源程序由主程序及两个子程序(DCT量化、Huffman编码)组成: ,1. First of all, through the DCT transform to remove data redundancy 2. The use of quantization table of quantization DCT coefficients 3. Of quanti
dct.rar
- 已知两个不同图像块亮度数据如下: (1)分析DCT原理,采用DCT方法,编程并计算相应的DCT系数,分析系数分布特点。 (2)依据视觉特性分析量化表步长的分布特点,完成DCT系数量化。 (3)采用Z形扫描,实现输出数据的统计编码,形成Video stream。 (4)采用IDCT重建图像亮度数据,计算SAD大小,分析产生误差的原因及采用DCT进行数据压缩的原理。( ) (5)分别利用左上角1、3、6个系数重建图像,计算相应的SAD,并由
DCT
- ARM汇编,实现DCT算法,图像压缩,JPEG 需要loadmemory,里面附带load文件示例以及样子图片,raw格式-ARM compilation and realizing DCT algorithm, image compression, JPEG need loadmemory, incidental load inside sample documents, as well as look like picture, raw format
dct-quanlity-snr
- 对一幅图像进行不同量化水平的DCT变换,可以应用于不同分块大小下的DCT变换测试。-On an image to quantify the level of different DCT transform, can be applied to different sub-block size DCT transform under test.
DCT
- 可完成二维DCT变换及量化,实现h264中变换量化部分功能-To be completed by two-dimensional DCT transform and quantization, transform h264 realize some functions to quantify
H264-DCT-Quanter
- H264中的整数DCT变换编码及量化代码,并附有原文的DCT编码、量化的说明文档。本源码从X264及JM中抽取后整理得来,并用原文档中的示例数据进行了测试,与原文档结果完全一样,是学习H.264不可多得的参考资源. -H264 in the integer DCT transform coding and quantization code, together with the original DCT coding, quantitative descr iption of the doc
DCT
- 256色灰度图像压缩 256色灰度图像dct变换-标量量化-反标量 量化-反DCT-256-color grayscale image compression 256-color grayscale image dct transform- scalar quantization- Anti-scalar quantization- Anti-DCT
JPEGcode
- JPEG编码器,霍夫曼,量化表,直流交流,DCT,量化表-JPEG encoder
DCT
- 对测试图像分块、DCT和量化,将量化后的系数写成矩阵形式。-The test image block, DCT and quantization, the quantized coefficients written in matrix form.
YUVcoderanddecoder
- 实现对YUV文件的编码和解码功能,DCT,量化,扫描,编码,然后在经过相反的过程,最终实现编码和解码功能。-Implementation of the YUV file encoding and decoding, DCT, quantization, scanning, coding, and then through the opposite process, the ultimate realization of encoding and decoding.
matlab_watermark
- 本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantiza
DCT
- 本文是关于DCT的图像压缩,量化,编码,重建图像-This article is about the DCT for image compression, quantization, coding, image reconstruction
A-DCT-watermarking-algorithm
- 提出了一种在数字图像上实现的盲水印算法, 嵌入的水印是64 64 8 bit 灰度图。该算 法用宿主图像的8 8 分块的DCT 域低频对应系数, 进行量化取余的方法嵌入水印。-Proposes a new digital image watermarking algorithm implemented on the embedded watermark is 64 64 8 bit gra
dct
- 应用matlab程序编写的在不同量化系数下的有损压缩效果(The lossy compression effect of different quantization coefficients written by matlab program)
daima
- 完成了DCT量化,哈夫曼编码,信道编码,数字调制功能(DCT quantization, Huffman coding, channel coding and digital modulation are completed.)