Welcome![Sign In][Sign Up]
Location:
Search - JPEG image compression algorithm in C

Search list

[Picture ViewermjpgTools

Description: mjpeg静止图像压缩算法库文件M-JPEG(Motion- Join Photographic Experts Group)技术即运动静止图像(或逐帧)压缩技术,广泛应用于非线性编辑领域可精确到帧编辑和多层图像处理,把运动的视频序列作为连续的静止图像来处理,这种压缩方式单独完整地压缩每一帧。 -heavier still image compression algorithm libraries M-JPEG (Motion-Join Photographic Experts Group) technology that movement still image (or frame by frame) compression technology, widely used in the field of non-linear editing to be precise frame editing and multi-image processing, video campaign as a continuous sequence to deal with static images, such compression to separate integrity compresses each frame.
Platform: | Size: 1556480 | Author: 王力 | Hits:

[Industry researchImage-Hashing-based-on-Human-Visual-System

Description: 提出一种基于视觉特性的图像摘要算法,增大人眼敏感的频域系数在计算图像Hash时的权重,使得图像Hash更好地体现视觉特征,并提高鲁棒性。将原始图像的分块DCT系数乘以若干由密钥控制生成的伪随机矩阵,再对计算的结果进行基于分块的Watson人眼视觉特性处理,最后进行量化判决产生固定长度的图像Hash序列。本算法比未采用视觉特性的算法相比,提高了对JPEG压缩和高斯滤波的鲁棒性。图像摘要序列由密钥控制生成,具有安全性。-Based on the visual characteristics of the image digest algorithm, increasing the human eye-sensitive frequency-domain coefficients in the calculation of the image when the weight of Hash, Hash makes images better reflect the visual characteristics, and improve robustness. Will block the original image multiplied by the number of DCT coefficients generated by the key control of pseudo-random matrix, then the results of calculation based on the sub-block of Watson HVS treatment, and finally quantify the judgments arising from fixed-length sequence of images Hash . Than the algorithm did not use the visual characteristics of the algorithm, improve the JPEG compression and Gaussian filtering robustness. Abstract image sequence generated by the key control, with security.
Platform: | Size: 167936 | Author: kurt | Hits:

[Embeded-SCM DevelopDCT

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 | Hits:

[Special Effectsjpeg_dsp

Description: 有关图像压缩的jpeg实现算法介绍及其源码-Related to the jpeg image compression algorithm introduced and its source
Platform: | Size: 162816 | Author: 刘荣国 | Hits:

[Special EffectsJpeg-Test2

Description: C# 实现的jpeg图像压缩压缩标准中的主要算法和实现。vs2008打开。可以使用-C# Implementation of the jpeg image compression standard compression algorithm and implementation in the main. vs2008 open. You can use
Platform: | Size: 315392 | Author: HolyWang | Hits:

[Linux-Unixjpeg

Description: 压缩包的内容包括:1.有关JPEG和DPCM算法的文章;2.实现其算法的压缩程序3.有关图像压缩方面的资料。读者请注意: <1>这里讨论的是灰度图像的压缩不涉及彩色图像。 <2>实现压缩时,输入的图像数据采用一种自定义的格式(com 格式),前四个字节记录图像的宽度和高度,之后就是逐 行的图像数据,图像的开头和结尾没有任何标记。这种格式的图像数据是从BMP图像中得到的。 <3>这里没有JPEG算法的解压程序,压缩后的数据存成标准的JPEG文件格式,任何视图软件都可以打开。DPCM方法中的解 压缩程序将数据仍然存成com格式,可以将其转成PGM格式观看,压缩包中由com转为PGM格式的程序。 <4>所有的C程序均是在Linux(Rethat7.3)下完成。-Compressed package includes: 1. The JPEG and DPCM algorithm article 2. To achieve its compression algorithm procedure 3. The image compression information. Readers please note: <1> discussed here is the gray image compression does not involve color images. <2> to achieve compression, the input image data using a custom format (com format), record the first four bytes of the image width and height, and then is gradually Line of image data, image mark the beginning and no end. This format of image data is obtained from the BMP image. <3> There are no procedures for JPEG decompression algorithm, compressed data stored as a standard JPEG file format, you can open in any view. DPCM method of solution Compressed program data is still stored as com format, you can watch it turn into a PGM format, compressed in the com format to PGM program. <4> All the C programs are in Linux (Rethat7.3) to complete.
Platform: | Size: 1811456 | Author: shikaichang | Hits:

[Special EffectsVc6_Image

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: | Size: 15010816 | Author: jhanker | Hits:

CodeBus www.codebus.net