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21 Questions

Views Newest Activity Votes

votes

answers

154

views

What is energy in image processing?

Oct 5 at 20:53 Laurent Duval 18.8k

votes

answers

381

views

How Much Zero Padding Do We Need to Perform Filtering in the Fourier Domain?

image-processing fourier-transform computer-vision convolution zero-padding

Apr 4 at 23:00 Royi 9,088

votes

answers

views

How does the “additive operator splitting” exactly work?

image-processing computer-vision filtering non-linear anisotropic-diffusion

Jun 2 at 11:38 nbro 232

votes

answers

views

Intuitively, why is the comb function the sampling function?

image-processing sampling computer-vision

Mar 28 at 11:41 nbro 232

votes

answers

views

What is the difference between an impulse response and a kernel?

image-processing filters computer-vision impulse-response terminology

Mar 26 at 20:34 nbro 232

vote

answer

114

views

What do we mean by spectrum?

image-processing computer-vision terminology

Aug 24 at 19:01 Community♦ 1

vote

answers

views

What Is the Relation Between Deblurring and Deconvolution in Computer Vision and Image Processing?

image-processing computer-vision deconvolution inverse-problem blur

May 20 at 18:21 Fat32 18.7k

vote

answers

104

views

Why can convolution only be applied to compute the output of a linear filter?

image-processing filters computer-vision convolution linear-systems

Apr 10 at 13:50 Izzo 379

vote

answers

101

views

Why isn't bilateral filtering shift-invariant?

image-processing filters computer-vision convolution

Apr 8 at 13:54 Olli Niemitalo 9,393

vote

answer

views

What is a periodic signal in image processing?

image-processing fourier-transform computer-vision periodic terminology

Apr 4 at 1:40 user559678 21

votes

answer

views

How is the Gaussian kernel related to the Euclidean distance of the neighbourhoods in the non-local means algorithm?

image-processing filters computer-vision

Sep 7 at 20:01 Community♦ 1

votes

answer

views

What is the relation between time, frequency, spatial and spectral domains?

image-processing computer-vision terminology

Sep 7 at 15:01 Community♦ 1

votes

answer

views

What does this notation $g(x) = S\{\delta(t) \}(x)$ mean?

image-processing linear-systems notation

Aug 22 at 21:03 Community♦ 1

votes

answers

views

What do the 1D filters represent when using imfilter?

image-processing matlab filters computer-vision convolution

Jun 5 at 8:16 Florian 1,092

votes

answer

views

Why is the anisotropic diffusion equivalent to the heat equation when using a constant diffusion coefficient?

image-processing math proof anisotropic-diffusion

May 30 at 16:13 nbro 232

votes

answer

views

What is the difference between domain and range filtering?

image-processing computer-vision image filtering terminology

Apr 3 at 21:47 nbro 232

votes

answers

views

What is the difference between a range filter and a low-pass filter?

image-processing filters computer-vision lowpass-filter

Mar 29 at 11:43 nbro 232

votes

answers

views

What is the relation between smoothing and blurring?

image-processing computer-vision terminology

Mar 28 at 17:03 nbro 232

votes

answer

views

Why exactly is the Guassian filter a low-pass filter?

image-processing computer-vision lowpass-filter

Mar 28 at 16:25 Hilmar 12.4k

votes

answers

views

What is intuitively a diffusion in the context of images?

image-processing computer-vision terminology

Mar 28 at 11:42 nbro 232

votes

answers

views

What is the basic idea behind Fourier transform? [closed]

fourier-transform fourier fourier-series

Jan 21 at 18:09 nbro 232

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21 Questions

What is energy in image processing?

How Much Zero Padding Do We Need to Perform Filtering in the Fourier Domain?

How does the “additive operator splitting” exactly work?

Intuitively, why is the comb function the sampling function?

What is the difference between an impulse response and a kernel?

What do we mean by spectrum?

What Is the Relation Between Deblurring and Deconvolution in Computer Vision and Image Processing?

Why can convolution only be applied to compute the output of a linear filter?

Why isn't bilateral filtering shift-invariant?

What is a periodic signal in image processing?

How is the Gaussian kernel related to the Euclidean distance of the neighbourhoods in the non-local means algorithm?

What is the relation between time, frequency, spatial and spectral domains?

What does this notation $g(x) = S\{\delta(t) \}(x)$ mean?

What do the 1D filters represent when using imfilter?

Why is the anisotropic diffusion equivalent to the heat equation when using a constant diffusion coefficient?

What is the difference between domain and range filtering?

What is the difference between a range filter and a low-pass filter?

What is the relation between smoothing and blurring?

Why exactly is the Guassian filter a low-pass filter?

What is intuitively a diffusion in the context of images?

What is the basic idea behind Fourier transform? [closed]