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Description: 图像缩放代码由是JPEG组的analyst编写，特点是可以对32位的图像数据进行任何比例的缩放操作，代码是经过MMX优化的在线汇编，速度相当快（大概是同功能C++代码的十倍以上，在ISee中我们用它来生成拇指图，效果很不错的）。-image scaling code from JPEG is the analyst group prepared, it is characterized by a pair of 32-bit image data scaling proportion of any operation, After MMX code is optimized online compilation, very fast (roughly the same function code C over 10 times, in ISee we use it to the thumb generation plans, the effect is quite good).
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Size: 3421 |
Author: zhangxp |
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Description: jpeg编解码器，请使用make编译。已经针对MMX指令进行过优化-jpeg codecs, please make use of compiler. Response has been MMX instructions Optimization
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Size: 597439 |
Author: rambler |
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Description: 这是非常好的使用MMX，SSE2等SIMD的JPEG的解压缩源码，速度是用C语言的1/4，非常的快。-It is a very good use of MMX, SSE2 SIMD, such as the JPEG compression solutions source, Speed is the C Language 1 / 4, very fast.
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Size: 1120305 |
Author: 林方 |
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Description: 这是一个JPEG解码器,里面使用了MMX,SSE等汇编指令集
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Size: 61895 |
Author: lishuai |
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Description: MMX JPEG Library
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Size: 578350 |
Author: 张国原 |
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Description: （利用GIF_LZW算法实现的）网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由：稳定性好。 二、使用字节数据流进行传输，理由： A:VB的String存在自动Unicode转换问题，影响速度； B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由： A:行程编码、Huffman压缩算法压缩率太低； B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现； C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF - LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX specialized optimization algorithm), is not conducive to VB; C : GIF - LZW compression algorithm compression ratio better, and I have come up with un
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Size: 62518 |
Author: 房 |
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Description: MMX JPEG Library
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Size: 578560 |
Author: 张国原 |
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Description: （利用GIF_LZW算法实现的）网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由：稳定性好。 二、使用字节数据流进行传输，理由： A:VB的String存在自动Unicode转换问题，影响速度； B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由： A:行程编码、Huffman压缩算法压缩率太低； B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现； C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF- LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX specialized optimization algorithm), is not conducive to VB; C : GIF- LZW compression algorithm compression ratio better, and I have come up with un
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Size: 62464 |
Author: 房 |
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Description: 图像缩放代码由是JPEG组的analyst编写，特点是可以对32位的图像数据进行任何比例的缩放操作，代码是经过MMX优化的在线汇编，速度相当快（大概是同功能C++代码的十倍以上，在ISee中我们用它来生成拇指图，效果很不错的）。-image scaling code from JPEG is the analyst group prepared, it is characterized by a pair of 32-bit image data scaling proportion of any operation, After MMX code is optimized online compilation, very fast (roughly the same function code C over 10 times, in ISee we use it to the thumb generation plans, the effect is quite good).
Platform: |
Size: 3072 |
Author: zhangxp |
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Description: jpeg编解码器，请使用make编译。已经针对MMX指令进行过优化-jpeg codecs, please make use of compiler. Response has been MMX instructions Optimization
Platform: |
Size: 596992 |
Author: rambler |
Hits:
Description: 这是非常好的使用MMX，SSE2等SIMD的JPEG的解压缩源码，速度是用C语言的1/4，非常的快。-It is a very good use of MMX, SSE2 SIMD, such as the JPEG compression solutions source, Speed is the C Language 1/4, very fast.
Platform: |
Size: 1120256 |
Author: 林方 |
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Description: 这是一个JPEG解码器,里面使用了MMX,SSE等汇编指令集
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Size: 61440 |
Author: lishuai |
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Description: 本解码器类支持普通jpeg文件格式，这也是目前大多数jpeg文件所采用的格式，此格式主要特点是数据精度为8位，采用Huffman编码的普通DCT帧（不支持扩展串行和递进模式及数学编码）。本解码器类的IDCT算法采用三种模式，分别是浮点解码、定点整数解码和定点整数MMX优化解码，您可根据具体情况选择。-The decoder supports the general category jpeg file format, which is most used in jpeg file format is the main characteristics of data accuracy of eight, using Huffman coding common DCT frame (do not support the extension of serial and progressive mode and Mathematics encoding). This type of IDCT decoder algorithm uses three models, namely the floating-point decoding, fixed-point integer decoding and fixed-point integer MMX optimized decoder, you can choose according to specific circumstances.
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Size: 2128896 |
Author: liusheng |
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Description: 一、使用TCP协议传输数据。理由：稳定性好。
二、使用字节数据流进行传输，理由：
A:VB的String存在自动Unicode转换问题，影响速度；
B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。
三、使用GIF-LZW压缩算法压缩图像。理由：
A:行程编码、Huffman压缩算法压缩率太低；
B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现；
C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。
四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-First, use the TCP protocol to transmit data. Reason: better stability.
Two, the use of byte data stream for transmission, the reasons:
A: VB s String existence automatic Unicode conversion question, effects of speed
B: can directly send 8-bit byte data, Does not need to use Base64 encoding, thereby reducing the encoding time.
Three, the use of GIF-LZW compression algorithm for image compression. Rationale:
A: Run-Length Coding, Huffman compression algorithm compression ratio is too low
B: JPEG compression algorithm required too many bit computing, and computing a large quantity (MMX has specialized optimization algorithm), VB is not conducive to implementation
C: GIF-LZW compression algorithm compression ratio is better, and I have come up with efficient under VB grammar GIF-LZW compression/decompression algorithm.
Four, use the "orderly jitter" algorithm for color quantization. Rationale: "orderly jitter" must deal with the results of reg
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Size: 54272 |
Author: whoamixp |
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Description: 本解码器类支持普通jpeg文件格式，这也是目前大多数jpeg文件所采用的格式，此格式主要特点是数据精度为8位，采用Huffman编码的普通DCT帧（不支持扩展串行和递进模式及数学编码）。本解码器类的IDCT算法采用三种模式，分别是浮点解码、定点整数解码和定点整数MMX优化解码，您可根据具体情况选择。-jpeg decoder using Huffman encoder、IDCT based on foating decoder、Fixed-point integer decoder and Fixed-point integer MMX Optimized decoder，you can make your choice According to the specific circumstances。
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Size: 103424 |
Author: 倾泠月 |
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Description: （利用GIF_LZW算法实现的）网络图片传输
一、使用TCP协议传输数据。理由：稳定性好。
二、使用字节数据流进行传输，理由：
A:VB的String存在自动Unicode转换问题，影响速度；
B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。
三、使用GIF-LZW压缩算法压缩图像。理由：
A:行程编码、Huffman压缩算法压缩率太低；
B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现；
C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。
四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(Using GIF_LZW algorithm) network picture transmission one, use the TCP protocol to transfer data. Reasons: good stability. Second, the use of byte data stream for transmission reasons: A: VB' s String automatic Unicode conversion problem exists, impact speed B: You can directly send 8 bytes of data, do not need to use Base64 encoding, thereby reducing the encoding time. Third, the use of GIF-LZW compression algorithm to compress the image. Rationale: A: run-length encoding, Huffman compression algorithm compression rate is too low : JPEG compression algorithm requires too many bit operations, and the large amount of computation (specifically MMX optimization algorithm), and not conducive to the realization of VB C: GIF-LZW compression algorithm The compression ratio is better, and I have come up with the VB syntax efficient GIF-LZW compression/decompression algorithm. Ordered dithering algorithm for color quantization. The reason: " ordered dithering" the results of trea
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Size: 133120 |
Author: 霍小刘 |
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Description: libjpeg-turbo是对libjpeg的扩展，支持SIMD指令，如X86架构的MMX、SSE、SSE2、3DNOW，ARM架构的NEON，在对jpeg进行编码和解码的过程中能提高速度。-libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX, SSE2, NEON) to accelerate baseline JPEG compression and decompression on x86, x86-64, and ARM systems. On such systems, libjpeg-turbo is generally 2-4x as fast as libjpeg, all else being equal. On other types of systems, libjpeg-turbo can still outperform libjpeg by a significant amount, by virtue of its highly-optimized Huffman coding routines. In many cases, the performance of libjpeg-turbo rivals that of proprietary high-speed JPEG codecs.
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Size: 26266624 |
Author: Gao |
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Description: 本解码器类支持普通jpeg文件格式，这也是目前大多数jpeg文件所采用的格式，此格式主要特点是数据精度为8位，采用Huffman编码的普通DCT帧（不支持扩展串行和递进模式及数学编码）。本解码器类的 IDCT算法采用三种模式，分别是浮点解码、定点整数解码和定点整数MMX优化解码，您可根据具体情况选择。-The decoder class support common JPEG file format, which is currently the most JPEG files in the format and the main characteristics of this format is data for 8-bit precision, using Huffman coding DCT common frame (does not support extended serial and progressive model and arithmetic coding). The decoder of the IDCT algorithm uses three modes, respectively, floating-point decoding, fixed-point integer decoding and fixed-point integer MMX optimization, you can choose according to the specific circumstances.
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Size: 207872 |
Author: hxzg |
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