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Description: 对原始灰度图像 Lena_gray.bmp进行图像压缩实验
1．对此图进行 8×8 DCT 变换后，分别只保留 DC系数，以及保留前 4、8、16 个变换系数(DC＋AC) ，然后再分别进行 IDCT 变换，比较结果。
2．可以使用 Matlab - Image Processing Toolbox 中的函数实现。
-gray image of the original image compression Lena_gray.bmp an experiment. This diagram 8 8 DCT, the only difference reservations DC coefficient, and the preservation of the former 4, 8 or 16 DCT coefficients (DC + AC), and then separately IDCT transformation, the results of the comparison. 2. Using Matlab-Image Processing Toolbox to achieve the function.
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Size: 1036 |
Author: 朱晓路 |
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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~
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Size: 3476 |
Author: viconia |
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Description: 对.bmp图像进行离散余弦变换，包括测试图像。
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Size: 142401 |
Author: fanzi |
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Description: 当要隐藏信息时,在MATLAB的命令窗内输入命令: hide = myhide(carry,signal,x,y)； carry 用你的原始载体文件名代替，signal 用你所要隐藏的文件名代替 carry 和 signal 都必须是 *.* 的形式（注意不能省略单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处 生成的伪装载体文件名为hide.bmp 注意myhide.m文件，载体文件，隐藏文件都要在当前目录(current Directory)下 当要提取信息时，在MATLAB命令窗内输入命令： behidden = myinhide(carry,x,y)； carry 用你的伪装载体文件名代替,格式为 *.* （注意不要丢掉单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处，这必须和嵌入时所选位置一致。 提取出的信息文件名为behidden.bmp 同样，要注意behidden.m和伪装载体文件都要在当前目录(current Directory)下-when to hide information, in order MATLAB within a window orders : hide = myhide (carry, signal, x, y); Carry with you the original document name instead vector, signal used to hide your name in the paper and instead carry signal must be in the form of *.* ( not to single quotes omitted) x, y is to select the location of hidden information coordinates (x, y) and (y, x) The formation of camouflage vector document, entitled hide.bmp attention myhide.m documents, vector documents hidden all the documents in the current directory (current Directory) to retrieve information when, in order window MATLAB import order : behidden = myinhide (carry, x, y); carry using your camouflage vector file name instead, the format for *.* (take care not to lose a single quote) x, y election Hiding information
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Size: 204479 |
Author: 韩飞 |
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Description: 当要隐藏信息时,在MATLAB的命令窗内输入命令: hide = myhide(carry,signal,x,y)； carry 用你的原始载体文件名代替，signal 用你所要隐藏的文件名代替 carry 和 signal 都必须是 *.* 的形式（注意不能省略单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处 生成的伪装载体文件名为hide.bmp 注意myhide.m文件，载体文件，隐藏文件都要在当前目录(current Directory)下 当要提取信息时，在MATLAB命令窗内输入命令： behidden = myinhide(carry,x,y)； carry 用你的伪装载体文件名代替,格式为 *.* （注意不要丢掉单引号） x,y 是选取隐藏信息的位置坐标，在（x,y）和（y,x）处，这必须和嵌入时所选位置一致。 提取出的信息文件名为behidden.bmp 同样，要注意behidden.m和伪装载体文件都要在当前目录(current Directory)下-when to hide information, in order MATLAB within a window orders : hide = myhide (carry, signal, x, y); Carry with you the original document name instead vector, signal used to hide your name in the paper and instead carry signal must be in the form of*.* ( not to single quotes omitted) x, y is to select the location of hidden information coordinates (x, y) and (y, x) The formation of camouflage vector document, entitled hide.bmp attention myhide.m documents, vector documents hidden all the documents in the current directory (current Directory) to retrieve information when, in order window MATLAB import order : behidden = myinhide (carry, x, y); carry using your camouflage vector file name instead, the format for*.* (take care not to lose a single quote) x, y election Hiding information
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Size: 203776 |
Author: 韩飞 |
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Description: DCT离散余弦变换编码和解码，利用vc对bmp图像实行变换，可以对变换和恢复后的结果进行保存和观看比较结果-the program of DCT coding and decoding.It is used to transform bmp to jpg.you can compare the original bmp to transformed jpg
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Size: 64512 |
Author: |
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Description: 对原始灰度图像 Lena_gray.bmp进行图像压缩实验
1．对此图进行 8×8 DCT 变换后，分别只保留 DC系数，以及保留前 4、8、16 个变换系数(DC＋AC) ，然后再分别进行 IDCT 变换，比较结果。
2．可以使用 Matlab - Image Processing Toolbox 中的函数实现。
-gray image of the original image compression Lena_gray.bmp an experiment. This diagram 8 8 DCT, the only difference reservations DC coefficient, and the preservation of the former 4, 8 or 16 DCT coefficients (DC+ AC), and then separately IDCT transformation, the results of the comparison. 2. Using Matlab-Image Processing Toolbox to achieve the function.
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Size: 1024 |
Author: 朱晓路 |
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Description: DCT编码mtalab程序，其中用到matlab的图像编码模块以及一些常用的算法程序-DCT coding procedures which used Matlab image coding module, and some commonly used algorithm!
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Size: 1024 |
Author: favinfeng |
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Description: 本源码是用VC++6.0实现的，显示了BMP位图，并实现了快速的8*8的块的DCT和IDCT变换-the source of VC 6.0, showing a bitmap BMP, and achieve a rapid 8* 8 block of DCT and IDCT transform
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Size: 4562944 |
Author: 颜色 |
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Description: 该程序实现了jpeg编码。开发平台：Window
XP， Visual C++ 6.0。
HuffmanExp 哈夫曼编码
JpgVSbmp Jpg和Bmp格式相互转换的API封装
RWJpegExp JpegVC++类
VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例
jpeg jpeg中的前向DCT变换-the program achieved a jpeg coding. Platform : Window XP, Visual C 6.0. HuffmanExp Huffman coding JpgVSbmp Broadband and Bmp format conversion API Packaging RWJpegExp JpegVC category called Broadband VbTestDll VB format and Bmp Conversion API function examples of jpeg jpeg to the DCT
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Size: 705536 |
Author: 刘啸天 |
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Description: 利用VC++将客户区图像保存为BMP位图文件，并且具有编辑功能-VC District customers will be kept as a BMP image bitmap file, with editing functions
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Size: 391168 |
Author: 啊征 |
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Description: JPEG图像解码并转换成BMP图像：大概包括IDCT、反量化、反编码等过程，程序可以正确编译！-JPEG image decoding and converted into BMP images : probably includes IDCT, anti-quantified, Anti-coding processes, procedures can correct translation!
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Size: 8192 |
Author: duyingsen |
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Description: 从jd1.ave中读取某一桢图像，并应用dct带通滤波，输出图像为‘source.bmp’-read from a jd1.ave Lo images, and apply Copy-pass filtering, Image output for the 'source.bmp'
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Size: 41984 |
Author: sdsd |
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Description: 行程编码，JPEG压缩编码（基本系统）
命令行编译过程如下
vcvars32
rc bmp.rc
cl compress.c bmp.res user32.lib gdi32.lib-itinerary coding, JPEG coding (basic system) command line compiler process following vcvars32 mail c bmp.rc l compress.c bmp.res user32.lib gdi32.lib
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Size: 191488 |
Author: 李云 |
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Description: 基于DCT域的数字水印的嵌入和提取，处理图像是BMP-DCT domain based on digital watermarking embedding and extraction, processing image is BMP
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Size: 4820992 |
Author: 秋水飘零 |
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Description: HuffmanExp 哈夫曼编码
JpgVSbmp Jpg和Bmp格式相互转换的API封装
RWJpegExp JpegVC++类
VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例
jpeg jpeg中的前向DCT变换-HuffmanExp Huffman JpgVSbmp Jpg and Bmp format conversion of the API package RWJpegExp JpegVC++ Category VbTestDll VB call Jpg and Bmp format conversion API function jpeg jpeg examples of the former to the DCT transform
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Size: 717824 |
Author: 韩义 |
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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 ~
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Size: 3072 |
Author: viconia |
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Description: 图像处理基础知识编写的这些程序对新手非常有帮助！4) 对图像进行离散余弦变换处理（图像变换）的源代码，编译后的可执行文件须带参数运行。
dct.cpp 使用方法：dct BMP文件名
-Image processing based on knowledge of these procedures for the preparation of novice very helpful! 4) discrete cosine transform image processing (image transformation) source code, the compiler of the executable file to be taken after the operation parameters. dct.cpp use: dct BMP file name
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Size: 17408 |
Author: zhaoxiaoguang |
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Description: bmp JPG相互转化.FFT DCT变化-bmp JPG mutual conversion. FFT DCT changes
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Size: 10530816 |
Author: andy |
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Description: bmp DCT 压缩
对原图像进行DCT变换，数据压缩，丢弃右下角高频数据，进行DCT反变换，得到压缩后的图像-bmp DCT compression of the original image DCT transform, data compression, discarding the lower right corner frequency data, DCT inverse transform, the images are compressed
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Size: 156672 |
Author: zjj |
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