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Nik


Active since 2013

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specifying bpp of an image
Most of compression analysis use different value of bpp. For example Lena image in 0.5 bpp, 0.25bpp and 0.125bpp. How can we adj...

8 years ago | 1 answer | 0

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answer

Question


How to develop non uniform quantizer
Dear all, how to write a matlab code to produce non uniform quantizer on an image with smaller interval at high occurrence pixe...

8 years ago | 1 answer | 0

1

answer

Question


how to pass the matrix value outside the loop
I need to pass the matrix value of 'xd' outside the loop. % display all the blocks. plotIndex = 1; numPlotsR = size(ca, 1...

9 years ago | 0 answers | 0

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answers

Question


what is actually wavelet coefficient
Dear all, I have some question regarding wavelet coefficients. 1. What is the purpose of wavelet coefficients? 2. Can we ...

9 years ago | 0 answers | 0

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Question


operation using *.m file
Can we make mathematical operation by calling our *.m function? For example, I have hthresh.m and sthresh.m. I want to get the a...

10 years ago | 1 answer | 0

1

answer

Question


error + matrix dimension must agree
I got error -- Error using + Matrix dimensions must agree. on this code. Please help me a=sign(X(ind1)).*(abs(X(in...

10 years ago | 1 answer | 0

1

answer

Question


different between tiff and jpeg format in calculating MSE and PSNR
I got a code to calculate CR,bpp, MSE and PSNR. I works well for *.jpeg image but not for *.tiff. A message "Error using ...

10 years ago | 1 answer | 0

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answer