wavelet-image-compression.zip - wavelet-image-compression Simple FPGA-based Wavelet Image Compression component and an example usage. This is a sample solution to our laboratory exercise *Image compression with Discrete Wavelet Transform* published in the scope of the EU-FP7 project [Image compression with Discrete Wavelet Transform].Description of the implemented solution can be found (documentation/wavelet-solution-documentation_v1.1.pdf).,2018-10-22 05:14:08,下载2次
Huffman coding and arithmetic coding.zip - In computer science and information theory, a Huffman code is a particular type of optimal prefix code that is commonly used for lossless data compression.
Arithmetic coding is a form of entropy encoding used in lossless data compression. Normally, a string of characters such as the words "hello there" is represented using a fixed number of bits per character, as in the ASCII code. When a string is converted to arithmetic encoding, frequently used characters will be stored with fewer bits and not-so-frequently occurring characters will be stored with more bits, resulting in fewer bits used in total.,2018-10-22 03:55:05,下载0次
JPEG Encoder Decoder.zip - JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality.JPEG compression is used in a number of image file formats. JPEG/Exif is the most common image format used by digital cameras and other photographic image capture devices; along with JPEG/JFIF, it is the most common format for storing and transmitting photographic images on the World Wide Web.[3] These format variations are often not distinguished, and are simply called JPEG.
The term "JPEG" is an initialism/acronym for the Joint Photographic Experts Group, which created the standard.,2018-10-22 03:51:15,下载1次
Arithemetic coding in matlab.zip - The string of bits generated by the encoder during the subordinate pass is entropy encoded using a custom version of adaptive arithmetic coding,2018-10-21 23:17:26,下载2次
EZW128.zip - The EZW technique is considered to be computationally complex. In addition to the use of many symbols, the EZW relies on additional coding techniques to code its final results. The EZW algorithm was later replaced by a much faster and computationally superior coding technique known as Set Partitioning in Hierarchical trees (SPIHT),2018-10-21 22:16:20,下载0次