jpeg2000

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"DSP development" using CCS5.4 to develop DSP6455-based JPEG2000 image decompression process

"DSP development" using CCS5.4 to develop DSP6455-based JPEG2000 image decompression processDisclaimer: Reference Please specify source http://blog.csdn.net/lg1259156776/Description: The front-end is the time based on the VS2010 project, the implementation of the openjpeg2000 on Windows, the implementation of the data from memory to extract the work of decompression. As some technical reserves are needed, they are ported to DSP6455 for decompression.

[ZZ] Python 3.4 and Pillow 2.4 with JPEG2000 (Openjpeg 2) support in Ubuntu 14.04

Pillow support for JPEG2000 comes from Openjpeg 2 library. Unfortunatly, Ubuntu's LIBOPENJPEG2 package isn't version 2 of the Openjpeg library, but actually version 1.3 which wont Work with Pillow.Installing Pillow 2.4 (pip Install-i Pillow) Simply results in"Openjpeg (JPEG2000) Support not available".Thus, it's needed to compile the Openjpeg Library 2.0 from source. For this, first lets download the Openjp

New generation of static image compression standard-jpeg2000

usage population and application domain, traditional JPEG compression technology can not satisfy the demand of multimedia image data. For the next century multimedia imaging applications, we need to be able to provide higher compression efficiency and more recent features of the new generation of image compression technology. In order to practice this dream, the new generation of static image compression standards, JPEG 2000, began to set up. JPEG2000

Summary of five commonly used picture formats and whether they have data compression

image, can support 24bit true color, but also widely used in the need of continuous tone image.JPEG format is the most popular image format on the network, it is possible to compress files into the smallest format, in the Photoshop software in JPEG format, provide 11 levels of compression level, 0-10-level representation. The 0-stage compression ratio is the highest and the image quality is the worst. The compression ratio can be up to 5:1 even with a 10-stage quality preservation with virtuall

Web front-End Pen Questions (3)--Wolf Factory

1. picture file format, pros and cons, and adaptation scenarios(1) JPEG2000 format: JPEG2000 is an upgraded version of JPEG with a compression ratio of about 30% higher than JPEG. Unlike JPEG, JPEG2000 supports both lossy and lossless compression, while JPEG only supports lossy compression. Support progressive transfer, support "area of interest" for partial prio

Common image formats

Group (Joint Photographic Experts Group) and named "ISO 10918-1", JPEG is only a commonly known. JPEG files with the extension of. jpg or. jpeg, the compression technology is very advanced, it uses lossy compression method to remove redundant images and color data, obtain a very high compression rate at the same time can display a very rich vivid image, in other words, can use the least disk space to get better image quality. JPEG is also a very flexible format, with the ability to adjust image

Common picture file formats and their respective features

. format of JPEG2000JPEG 2000 is a new generation of still image compression technology with higher compression rates and more features.Unlike JPEG, the JPEG2000 supports both lossy and lossless compression, while JPEG only supports lossy compression (JPEG2000). Lossless compression is useful for preserving some important images. One of the most important features of JP

A brief description of common Web page image format: bmp/jpg/gif

image quality. JPEG 2000 is also developed by the JPEG organization, which has a new generation of static image compression technology with higher compression rates and newer features than JPEG. JPEG2000 as an upgraded version of JPEG, its compression rate is about 30% higher than JPEG. Unlike JPEG, JPEG2000 supports both lossy and lossless compression, while JPEG can only support lossy compression. Loss

Introduction to gdal virtual files

): Hierarchical Data Format Release 4 HDF4Image (rw+): HDF4 Dataset ISIS3 (rov): USGS Astrogeology ISIS cube (Version 3) ISIS2 (rw+v): USGS Astrogeology ISIS cube (Version 2) PDS (rov): NASA Planetary Data System TIL (rov): EarthWatch .TIL ERS (rw+v): ERMapper .ers Labelled ECW (rov): ERDAS Compressed Wavelets (SDK 4.2) JP2ECW (rov): ERDAS JPEG2000 (SDK 4.2) JPEG2000 (rwv): JPEG-2000 part 1 (ISO/IE

Detailed description of the free and stable. net pdf print component itextSharp (. NET Component Introduction 8) and itextsharp

to a Paragraph, you can add List, Image, Paragraph, and Chunk. 3. Image. GetInstance () to obtain the Image instance. public static Image GetInstance(Image image){ if (image == null) { return null; } return (Image) image.GetType().GetConstructor(BindingFlags.Public | BindingFlags.Instance, null, new Type[] { typeof(Image) }, null).Invoke(new object[] { image });} public static Image GetInstance(byte[] imgb){ int num = imgb[0]; int num2 = imgb[1]; int num3 = imgb[2]; int num4 = imgb[3

Tutorial on installing the Python Pillow library on the MacOS System

Pillow Downloading Pillow-2.4.0.zip (6.5MB): 5.0MB downloaded Cleaning up... When I get it back, I find that the download is not complete. This is a slow process, so I gave up.4. Git Download source code https://github.com/python-imaging/Pillow through git git clone https://github.com/python-imaging/Pillow.git Then start compilation and Installation 4.1 python setup.py build_ext -i After compilation, you will be prompted to run the test example and find JPEG support not available. ---

Tutorial on installing Python's Pillow library on Mac OS, pythonpillow

download is not complete. This is a slow process, so I gave up.4. Git Download source code https://github.com/python-imaging/Pillow through git git clone https://github.com/python-imaging/Pillow.git Then start compilation and Installation 4.1 python setup.py build_ext -i After compilation, you will be prompted to run the test example and find JPEG support not available. -------------------------------------------------------------------- version Pillow 2.4.0 platform darwin 2.7.5 (default

Powerful PDF View Control spire.pdfviewer for. NET

is more than just a control that allows your application to display the contents of a PDF file, and it allows you to do more and more quickly and easily manipulate PDF files. Main functions: Loads a PDF file from a local folder (file), stream, and byte array. Support for viewing pdf/a-1b, pdf/x1a, and encrypted PDF files. Supports multiple print orientations: Landscape, Portrait, automatic Support for exporting PDF files and converting them into picture formats (supports bm

Java uses ImageIO to read and write images __imageio

There are three ways to do image I/O in Java (that is, read pictures and write pictures, and do not involve complex image processing): The Java image I/O API, which supports common images, is built from Java 2 version 1.4.0. Home: http://java.sun.com/javase/6/docs/technotes/guides/imageio/index.html Image I/O Tools in JAI support for more picture types, such as Jpeg-ls, JPEG2000, and TIFF. Home: https://jai-imageio.dev.java.net/. JAI is a framework

Evaluation index of image sharpness

, the block effect is defined as the average of the signal difference between the left and right cross-boundary: Then calculate the mean of the signal difference in the block: Then calculate the zero-crossing (ZC) rate, ZC is the boundary across zero meaning, that is, the value of the adjacent two points of the product is a negative, that is, a negative, so for [1, N-2] in the range of Y, define the following variables:So the level of ZC is defined as follows:Similarly, we can calculate the valu

tutorial on installing the Python Pillow Library on Mac OS systems

/local/bin/pilfile.py /usr/local /bin/pilfont.py /usr/local/bin/pilprint.py Proceed (y/n)? y Successfully uninstalled Pillow After success, you need to install LIBJPEG support Recompile pillow after successful installation --------------------------------------------------------------------version Pillow 2.4.0 platform Darwin 2.7.5 (DEFA Ult, 00:04:04) [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)]-------------------------------- ---------------------------------------TKINTER s

Python gdal Tutorial: Reading raster data with Gdal

Gdal native supports more than 100 raster data types, covering all major GIS and RS data formats, including ArcInfo grids, ArcSDE raster, Imagine, Idrisi, ENVI, GRASS, GeoTIFF HDF4, HDF5 USGS DOQ, USGS DEM ECW, MrSID TIFF, JPEG, JPEG2000, PNG, GIF, BMP The complete support list can be consulted http://www.gdal.org/formats_list.html Import Gdal Support Library Older version (1.5 ago): Import Gdal, Gdalconst New version (after 1.6): From OSGeo import G

[To] C #-based Open source GIS Project introduction of SHARPMAP Chapter

projects where you only need a simple map function.2, it is based on the. NET 2.0 environment, for. NET environment support is good.3, easy to use, as long as in. NET project to reference the response DLL file, no complex installation steps.Supported data formats and features:Postgresql/postgis,esri ShapefilesSupport for WMS LayersSupports ECW and JPEG2000 raster data formatsWindows Forms controls, which can be moved and scaledSupport for ASP. NET pr

PHP uses GD library to generate verification code to draw Chinese characters on image

PHP is not limited to creating HTML output, it can also create and process images in a variety of formats including GIF, PNG, JPEG, WBMP, and XPM. More conveniently, PHP can directly output the image data stream to the browser. To use the image processing function in PHP, you need to compile PHP together with the GD Library.The GD library and PHP may require additional libraries, depending on the format of the image you are working with. You can use the image functions in PHP to get the size of

Share: TWAIN Scan recognition tool for Web applications--dynamic Web TWAIN

color Support Image Zoom/Zoom Out Support for simple annotations (text) Support for simple annotations (text) Support Image offset correction Save Upload Download Features Download/upload images via Http/https or Ftp/ftps Supports saving/uploading format images such as BMP, JPEG, PNG, TIFF, PDF, etc. Multi-page Tiff/pdf file support The Mac version also supports loading JPEG2000, PSD, TGA-type images Ma

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