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Re: Convolution helP 15 Years Ago by something else … << endl; } /////////////////////////////////////////////////////////////////////////////// // 1D convolution // We assume input and kernel signal start from … /////////////////////////////////////////////////////////////////////////////// bool convolve1D(float* function, float* convolution, int dataSize, float* Gauss, int GaussSize)… Convolution helP 15 Years Ago by something else …, below is my code to do a Convolution. I am tryingt o convolute my theoretical …; Gauss[x] << endl; } // Now do the convolution // Loop through all 40 samples for ( int i = 0; …[i] = 0; // set to zero before sum // Loop through convolution for this data point and perform sum for (int j… convolution help 12 Years Ago by king03 … make a program that computes for the convolution, but I am still quite confused how convolution works? I have a matlab program… in my pc and I tried to use convolution there and here is what I got: >> x… Re: convolution help 12 Years Ago by m4ster_r0shi … -> [URL="http://en.wikipedia.org/wiki/Convolution#Discrete_convolution"]Discrete Convolution[/URL], [URL="http://en.wikipedia.org/wiki/Cauchy_product… Re: Convolution helP 15 Years Ago by something else … * PISQ) * exponential ); cout << Gauss[x] << endl; } // CONVOLUTION for (int i = 0; i < sampleCount; i++ ) { for (int… Re: Convolution C++ programme 15 Years Ago by Nick Evan … give some background on [i]why[/i] you need gaussian convolution. I mean: if you don't understand what is does… to do is convolute a value with a function. [/QUOTE] Convolution is nothing but a multiplication between functions right? So if… Re: Convolution C++ programme 15 Years Ago by something else … library, when I have searched I have found lots of convolution stuff for images and dont have the foggiest where to… Re: Convolution C++ programme 15 Years Ago by twomers As far as I remember multiplication in the frequency domain is more efficient than convolution in the time domain, so fft the signals and multiply 'em out. Also, if you're doing a PhD in physics I'd assume that you'd have access to mathematically orientated software. This is much more easily accomplished via something like Matlab. Re: Convolution C++ programme 14 Years Ago by msiddi13 If your convolution kernel is [1 0 1] and you apply it to … Fast Convolution on Images 14 Years Ago by saravananrmca … and 3X3 kernels to convolve with Image. As I know convolution is computational Intensive and I have to convolve many kernels… convolve kernel with image, the values difference between two sequentially convolution is very less in many places, because the pattern is… Re: Need Convolution Encoder C program 17 Years Ago by Raj@web It is a Convolution Encoder program, Convolution is a Mathematical way of combining two signals to form a third signal, it is a Digital Signal Pocessing technique Re: Fast Convolution on Images 14 Years Ago by saravananrmca HI thanks for the reply can you give any other idea to speed up the convolution Saravanan.R Re: 2D Gaussian convolution 12 Years Ago by Software guy … to do is to get the formula for the 2d convolution and make an algorithm for it. I would suggest after… view the result. If your 1D Gaussian filter works then convolution should be straight forward. Need Convolution Encoder C program 17 Years Ago by Raj@web [B]Hey i have been working C, But i need to do a Convolution progrm in C, So pls advice on this matter How to initialize..[/B] Re: Need Convolution Encoder C program 17 Years Ago by WolfPack What is a convolution program? Re: Need Convolution Encoder C program 17 Years Ago by Raj@web I searched, but it has abt the Convolution encoder only Not the C program, Re: Need Convolution Encoder C program 17 Years Ago by Salem Search harder? [url]http://clusty.com/search?query=convolution+dsp+c+source+code[/url] 2D Gaussian convolution 12 Years Ago by newack Hello, for my assignment, I have to implement 2D Gaussian convolution using 1D Gaussian masks. I have two pgm files. I know the theory but I do not know where to start and how to deal with pixels. can anybody help me? Re: 2D Convolution Optimization? 12 Years Ago by mike_2000_17 …/5243983/what-is-the-most-efficient-way-to-implement-a-convolution-filter-within-a-pixel) is a good starting point. Convolutions… either perform the multiplication in Fourier space (instead of a convolution in the original space), or you separate the filter in… extremely newbie errors in GCC C 16 Years Ago by twickywabbit … the variable * This generator uses the Convolution method */ double lognormal(double mu, double… the degree of freedom * This generator uses the Convolution method */ double chisquare(int dof) { if( … degree of freedom * This generator uses the Convolution method */ double t(int dof) { return… Image Processing - Anyone please 16 Years Ago by roqval … task (e.g., enhancement, filtering) by applying a convolution mask. Typically these masks are 3X3 or 5X5 in size…get varying results, i.e., there is a different convolution mask for low-pass filtering, different masks for edge …positive and negative real or integer values • apply the convolution mask to the image data using a scalar processing … efficient c++ 17 Years Ago by yuelabtina …WAVELET1( void ); ~WAVELET1( void ); void testTF( int,double, double *); // do convolution double correlation( int, int, int,int, double, double, double *, double…)/( 2*pow(mStdevTdomain,2)))* exp(*p5); p4++; p5++; } //do convolution by FFT mLength = fNumSample + mTimeLengthSize-1; if (mLength<=1024… IIR Filter implementation in TMS320C6416? 15 Years Ago by greg6666 …;i<len_seq;i++)//padding zeros b[i]=0; //CIRCULAR CONVOLUTION EQUA IMPLEMENTATION for(n=0;n<len_seq;n++) { for…]; } op_seq[n+1]=op1_seq[n]+op2_seq[n]; } //END OF CIRCULAR CONVOLUTION EQUATION //DISPLAY OUTPUT for(k=1;k<len_ip+1… Finding most similar image 14 Years Ago by Serrafine … match than the most similar one. I was wondering if convolution would be the way to do this? I thought maybe… that had the highest resulting value. I've only used convolution in Matlab to find exact matches and have no experience… XML parsing 14 Years Ago by bunnyboy … task to create an application to apply convolution over image. I decided to load convolution cores from xml file. But, as this… Re: efficient c++ 17 Years Ago by yuelabtina …]),2)/( 2*pow(mStdevTdomain,2)))* exp(*p5); p4++; p5++; } //do convolution by FFT mLength = fNumSample + mTimeLengthSize-1; if (mLength<=1024… beginner 16 Years Ago by sumachitti how to write a convolution program using mips64 Please help me to convert a simple C++ program into an object-oriented one. 16 Years Ago by zekesteer … application of the filter to the data involves a simple convolution // operation. The filtered data are stored separately. // // Example // before filtering… c++ compiled program much slower than g++ 15 Years Ago by mabuse … seconds). The program uses <vector> and does a convolution: [CODE] void DSP_fir_gen1 ( vector < double > *x, double *h… Deconvolution 15 Years Ago by jspeakers … the write direction. I have started to try to understand Convolution by creating 2 sine waves in Excel then save the…