pHash is an implementation of various perceptual hashing algorithms. A perceptual hash is a fingerprint of an audio, video, or image file that is mathematically based on the audio or visual content contained within. Unlike cryptographic hash functions that rely on the avalanche effect of small changes in input leading to drastic changes in the output, perceptual hashes are "close" to one another if the inputs are visually or auditorily similar. As a result, perceptual hashes must also be robust enough to take into account transformations that could have been performed on the input.
标签： perceptual implementation algorithms fingerpr
上传时间： 2013-12-08
上传用户：星仔
This paper presents a novel technique to increase the quality of medical images based on Histogram Equalization. In the proposed method first we have applied a noise reduction method and then we apply some suitable preprocessing on histogram of the medical images and after that histogram equalization has been applied on the new histogram. Our proposed method in despite of its simplicity has better results in compare to other usual methods based on histogram equalization. The quality of resulted images after applying our proposed methods has been tested on a database (medical images) with a confirmed criterion by viewer. also we have considered a mathematical criterion for comparing our proposed algorithm with other available methods for contrast enhancement. Results show the better efficiency of the proposed method.
标签： Histogram technique increase presents
上传时间： 2017-04-20
上传用户：VRMMO
======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : SimpleExtMFC ======================================================================== AppWizard has created this SimpleExtMFC application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your SimpleExtMFC application.
上传时间： 2017-04-21
上传用户：daguda
This is the Reference Manual for the MySQL Database System. It documents MySQL up to Version 5.0.1-alpha, but is also applicable for older versions of the MySQL software (such as 3.23 or 4.0-production) because functional changes are indicated with reference to a version number.
标签： MySQL Reference documents the
上传时间： 2014-01-17
上传用户：shinesyh
SPWM technique for Three Phase Inverter. Analysis fundamental improvement with respect to modulation index variation is done in simulation. Analysis can be done also for switching frequency variation for shifting the dominant harmonics
标签： fundamental improvement modulation technique
上传时间： 2017-04-23
上传用户：hanli8870
The use of hardware description languages (HDLs) is becoming increasingly common for designing and verifying FPGA designs. Behavior level description not only increases design productivity, but also provides unique advantages for design verification. The most dominant HDLs today are Verilog and VHDL. This application note illustrates the use of Verilog in the design and verification of a digital UART (Universal Asynchronous Receiver & Transmitter).
标签： increasingly description designing languages
上传时间： 2014-01-08
上传用户：小草123
Picking Up Perl is a freely redistributable tutorial book on Perl that can be downloaded in pdf, postscript, or textinfo format. It can also be viewed online in html format, either as one large file or as separate files for each chapter.
标签： Perl redistributable downloaded tutorial
上传时间： 2014-01-14
上传用户：colinal
This is a Flex UIComponent that can be used 谋n a FLEX 3 mxml application as component written in action script 3.0, provides you to create items that cab be filled from an XML or Query ResultSet or etc. and is viewed in a container that can preview images and additional info like a store item and can be added to shopp谋ng chart , and also can be deleted from that shopp谋ng chart
标签： UIComponent application component written
上传时间： 2013-12-09
上传用户：dapangxie
with this rar file i am sending five source codes in vhdl for xor gate,xor gate using tristae gate,electronic voting machine,mod 16 counter,jk flip flop.please accept these codes and make me member of this site.so that i can download code from this site also.i really needed codes please accept that as soon as possible.
上传时间： 2013-12-18
上传用户：wcl168881111111
program which uses hashing techniques for storing and retrieving the data. Input to the program: Some random numbers. Input will be from a file. Output: First the program reads all the input and store it properly using some hash techniques. Once your program reads the complete input,it waits for the user input (prompt to the user). User now enters some number.program displays if this number exists in the list or not. it also display the time taken in the search operation.
标签： program techniques retrieving the
上传时间： 2017-04-27
上传用户：shus521
