Description: 其功能是实现对图象的DCT(离散余弦变化)变化,包含原始图和变化后的结果以及C代码-its function is to achieve the right image DCT (discrete cosine change) change, containing the original map and change the outcome of the C code Platform: |
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Author:梁剑 |
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Description: 其功能是实现对图象的DCT(离散余弦变化)变化,包含原始图和变化后的结果以及C代码-its function is to achieve the right image DCT (discrete cosine change) change, containing the original map and change the outcome of the C code Platform: |
Size: 126976 |
Author:梁剑 |
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Description: 基于C++语言的静态图象压缩编码，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。-based on the C language static image compression, JPEG DCT quantization coding C procedures, learning right image coding process and to achieve specific helpful. Platform: |
Size: 131072 |
Author:朱国福 |
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Description: 离散傅立叶变换，在数字图像的频域处理中经常使用的变换，源代码为VC6开发环境。-Discrete Fourier Transform in the frequency domain of digital image processing frequently used transform, the source code for VC6 development environment. Platform: |
Size: 150528 |
Author:bmws |
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Description: 使用DCT算法实现8X8的BMP图像压缩的一个源代码，希望对大家有用~-8x8 algorithm using DCT image compression of BMP, a source code, in the hope that useful to everyone ~ Platform: |
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Author:viconia |
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Description: 这是对图像进行离散余弦变换的程序，用c++编写的代码-This is a discrete cosine transform image of the procedure, with c++ Prepared code Platform: |
Size: 1024 |
Author:zhangjin |
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Description: 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 Platform: |
Size: 10240 |
Author:林锋 |
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Description: 该目录包含了基于可移植的C语言的数字水印算法的代码。这些代码具有示范
性的意义，且有一定的鲁棒性。
需要安装NetPGM的程序包（用来存取pgm格式图像），然后才能在linux下面编译。
NetPGM是图像文件的输入/输出软件包。可以在网上搜索得到。我们已经对
256灰度级，512×512大小的图像进行了测试。程序编译后的调用格式如下（以encode为例）：
wm_cox_e -s cox.sig -o wm_image.pgm image.pgm
其中，-s表示要添加的水印信号，cox.sig是信号文件。
-o表示输出图像文件名为wm_image.pgm，
image.pgm为输入文件名。
几个辅助程序：
cmp_pgm 计算差分图像，PSNR等
cmp_dct 计算全帧DCT域的差分图像
cmp_dct8x8 计算8×8大小的DCT域差分图像
比如说，为了产生两个PGM图像的差分图像并计算它们的PSNR，命令如下：
cmp_pgm -p -i original.pgm -o diff.pgm watermarked.pgm
产生水印信号：
gen_cox_sig -o cox.sig
程序将产生适合512×512大小，8-bit灰度的pgm图像的水印信号。
水印提取：
wm_cox_d -s cox.sig -i lena.pgm -o cox.wm cox_lena.pgm
请注意，cox的算法需要原始图像做参考来提取水印，压缩后的水印将存储在cox.wm中。-This directory contains the C-based portable digital watermarking algorithm code. The code has a demonstration
Of meaning, and there is a certain degree of robustness.
NetPGM need to install the package (to access the pgm format images), and then to compile in linux below.
NetPGM is the image file input/output package. Can search by. We have already
256 gray level, 512 × 512 size images were tested.
Procedure call format, compiled as follows (in encode an example):
wm_cox_e-s cox.sig-o wm_image.pgm image.pgm
Which,-s that you want to add the watermark signal, cox.sig is the signal file.
-O said output image file name wm_image.pgm,
image.pgm for the input file name.
Several auxiliary programs:
cmp_pgm calculate the difference image, PSNR, etc.
cmp_dct full frame DCT domain calculation of difference image
cmp_dct8x8 calculate the size of 8 × 8 DCT domain differential image
For example, in order to produce two PGM images and calculate their differ Platform: |
Size: 19456 |
Author:sylvia |
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Description: . Write MATLAB code that will do the following.
(a) Apply DCT on an image and obtain the o/p
(b) On the DCT image apply quantization using standard quantiser. (8×8)
(c) Apply IDCT to retain back the image.
Apply Hoffman compression
-. Write MATLAB code that will do the following.
(a) Apply DCT on an image and obtain the o/p
(b) On the DCT image apply quantization using standard quantiser. (8×8)
(c) Apply IDCT to retain back the image.
Apply Hoffman compression
Platform: |
Size: 51200 |
Author:Rokibul Ahmed |
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Description: VC++图像处理及源码包（大全）包括下列内容：1.数字图像获取，处理及实践应用电子书 2.数字图像获取，处理及实践应用电子书分章节源码 3.书中提及的各种算法的综合源码。压缩包里面包括的算法代码有：分章节源码内容：内容：对比度增强、灰度变换法、直方图修整法、图像平滑、图像锐化、伪彩色和假彩色增强；逆滤波复原、维纳滤波方法；傅立叶变换、离散余弦变换（DCT）、沃尔什变换、基于特征向量的变换、霍特林（Hotelling）变换、SVD变换、小波变换、Mallat算法；霍夫曼（Huffman）编码、算术编码、游程编码（Run Length Coding）、位平面编码、预测编码、DPCM、JPEG 2000编码；骨架检出、轮廓提取；边界跟踪、阈值分割区域生长、分裂合并、 Canny算子；图像的模式识别。各种算法的综合源码：原图、抖动，灰度变换、直方图均衡、多种滤波器、伪彩色增强，运动模糊、逆滤波，傅立叶变换、快速傅立叶变换、离散余弦变换、沃尔什变换、霍特林变换、小波变换、小波反变换，霍夫曼编码、香浓-费诺编码、算术编码、位平面编码，图像识别。(Visual C++ image processing and source code package (Daquan) includes the following contents: 1. Digital image acquisition, processing and practical application of e-book 2. Digital image acquisition, processing and practical application of e-book chapter source code 3. The comprehensive source code of various algorithms mentioned in the book. The algorithm codes included in the compression package include: Chapter Source Code: Content: Contrast Enhancement, Gray Level Transform, Histogram Renovation, Image Smoothing, Image Sharpening...) Platform: |
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Author:jhanker |
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Search - image dct c code