這是06年4月剛剛完成的程序，從opencore.org下載而來(lái)。用vhdl語(yǔ)言描寫，以及matlab仿真，testbench，以及在xinlinx上的綜合。
The MDCT core is two dimensional discrete cosine TRANSFORM implementation designed for use in compression systems like JPEG. Architecture is based on parallel distributed arithmetic with butterfly computation.
Wavelets have widely been used in many signal and image processing applications. In this paper, a new
serial-parallel architecture for wavelet-based image compression is introduced. It is based on a 4-tap wavelet
TRANSFORM, which is realised using some FIFO memory modules implementing a pixel-level pipeline
architecture to compress and decompress images. The real filter calculation over 4 · 4 window blocks is
done using a tree of carry save adders to ensure the high speed processing required for many applications.
The details of implementing both compressor and decompressor sub-systems are given. The primarily analysis
reveals that the proposed architecture, implemented using current VLSI technologies, can process a
video stream in real time.
The code, images and designs for this book are released under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
http://creativecommons.org/licenses/by-nc-sa/2.5/
You are free:
* to copy, distribute, display, and perform the work
* to make derivative works
Under the following conditions:
*Attribution. You must attribute the work in the manner specified by the author or licensor.
*Noncommercial. You may not use this work for commercial purposes.
*Share Alike. If you alter, TRANSFORM, or build upon this work, you may distribute the resulting work only under a license identical to this one.
*For any reuse or distribution, you must make clear to others the license terms of this work.
*Any of these conditions can be waived if you get permission from the copyright holder.
CONTACT ME
Please address any questions to info@andybudd.com.
一個(gè)自由、開源的圖形庫(kù)--FreeImage3.92最新版的中文參考(支持位圖構(gòu)件―例如調(diào)色板和數(shù)據(jù)位―的便易訪問(wèn)；將位圖從一種位深度轉(zhuǎn)換到另一種位深度；當(dāng)有多幅位圖頁(yè)―例如TIFF―時(shí)訪問(wèn)位圖的不同頁(yè)；基本的位圖處理，如旋轉(zhuǎn)、翻轉(zhuǎn)（flipping）和重采樣，或點(diǎn)操作，如亮度和對(duì)比度調(diào)整；Alpha混合與合成（Compositing and blending）；FreeImage不支持：高級(jí)圖象處理操作，如回卷（Convolution）和變換（TRANSFORM）；位圖繪制； 矢量圖形。)
3D reconstruction, medical image processing from colons, using intel image processing for based class. This source code. Some code missing but I think you can understand it. Development version. This source code is very interesting for learning segmentation and registration from dataset. This code also has some technique about GPU image processing for ray tracing. Also learn many filter apply for TRANSFORM from spatial domain to frequency domain.
The Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG are finalising a new standard for
the coding (compression) of natural video images. The new standard [1] will be known as H.264 and
also MPEG-4 Part 10, “Advanced Video Coding”. This document describes the TRANSFORM and
quantization processes defined, or implied, by the standard.
IEEE Std 1180-1990. IEEE Standard Specifications for the Implementations of 8x8 Inverse Discrete Cosine TRANSFORM, specifies the numerical characteristics of the 8x8 inverse discrete cosine TRANSFORM (IDCT) for use in visual telephony and similar applications where the 8x8 IDCT results are used in a reconstruction loop. The specifications ensure the compatibility between different implementations of the IDCT.
A new cable fault location method based on
wavelet reconstruction is proposed. In this method the
difference between the currents of faulty phase and sound
phase under the high voltage pulse excitation is used as the
measured signal and is decomposed in multi-scale by wavelet
TRANSFORM, then reconstructed in single scale. Comparing with
traditional fault location method by travelling wave, the
presented method will not be interfered by the reflected wave
from the branch joint of cables or from other positions where
the impedances are not matched and not be influenced by fault
types, otherwise, the reflected waves can be recognized even
the faulty position is near to the measuring terminal, at the
same time, the influence of the wave speed uncertainty can be
reduced. The correctness of the proposed method is proved by
simulation results.
