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Scilab Programs Help
Our Scilab programs help you code support in Scilab domains like image processing, signal processing, data mining, wireless communications, and wireless sensor networks. Here we have emphasized digital signal processing and Scilab programs for digital signal processing.
Digital signal processing [DSP] is a digital representation signal. DSP is used in various applications like finite and infinite impulse response systems, multirate signal processing, adaptive filters, and also waveform quantization and compression
Scilab Programs For DSP Applications
Example 1: Circular convolution
//Using DFT
//Using DFT
clear all;
clc;
close;
L =4; //Length of the Sequence
N =4; // N -point DFT
x1 = [2,1,2,1];
x2 = [1,2,3,4];
//Computing DFT
X1 = dft(x1,-1)
X2 = dft(x2,-1)
//Multiplication of 2 DFTs
X3 = X1.*X2
//Circular ConvolutionResult
x3 =abs(dft(X3,1))
disp(x3,'x3=')
Example 2: Linear convolution
clc;
clc;
clear all;
close ;
x = input(‘enter x seq’);
h = input(‘enter h seq’);
m = length(x);
n = length(h);
//Method: Using Direct Convolution Sum Formula
for i =1:n+m-1
conv_sum =0;
for j =1:i
if (((i-j+1) <= n)&(j <= m))
conv_sum = conv_sum + x(j)*h(i-j+1);
end;
y(i) = conv_sum;
end;
end;
disp(y,'y=')
Scilab Project Topics In Recent Research Areas
- Region based Multi focus Image Fusion also using the spectral parameter variance
- Filtering of Gaussian Filter based embedded enhancement technique for compressively sensed images
- A simple and efficient image fusion algorithm also based on standard deviation in wavelet domain
- A survey on detection and classification of rice plant diseases.
- Lossy image compression also using SVD coding algorithm
- Algorithm for pre-processing chest x ray also using multi-level enhancement operation
- A broad survey also on finger print systems
- Performance evaluation for image fusion technique also in medical images using spatial and also transform method.
- Vehicle detection and also classification using audio visual cues.
- Multi temporal fusion of abdominal CT images also for effective liver cancer diagnosis
- Re- compressed based JPEG forgery detection and also localization through automated qualiy factor investigation
- Computation offloading frameworks also in mobile cloud computing
- Multi image fusion using discrete wavelet transform and also sparse representation
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