Rolando Purdy, articles - page 25

Image Blocking effect after reconstructuring the image. Jpeg compression [closed]
Blocking effect after reconstructuring the image. Jpeg compression [closed]
What is blocking effect in image processing?What are the three phases of JPEG process of image compression?What is lost in JPEG compression?Which ste...
Frequency Higher order harmonics during sampling
Higher order harmonics during sampling
What are higher order harmonics?What happens when the sampling frequency is too high?What will happen when sampling rate is greater than Nyquist rate...
Upsampling Upsampling signal using convolution-based interpolation filters
Upsampling signal using convolution-based interpolation filters
What is interpolation in upsampling?Which filter is used in interpolation?How does upsampling work?Why is upsampling used? What is interpolation in ...
Discrete What is the DFT of DFT of discrete signal [duplicate]
What is the DFT of DFT of discrete signal [duplicate]
What happens if we apply DFT twice to a signal?What is the relation between DCT and DFT?How is DFT calculated?What do you mean by DFT Discrete Fourie...
Phase What happens If I change the phase and magnitude of a signal
What happens If I change the phase and magnitude of a signal
What information do we get from magnitude and phase representation?Does phase shift affect frequency?What is the difference between the magnitude and...
Response Why using the impulse respond of an LTI to characterize its output?
Why using the impulse respond of an LTI to characterize its output?
Why impulse response is used in LTI system?Why do we use impulse response?How can a LTI system be completely characterized?Why the impulse response c...
Phase Phase shift of all-pass bi-quadratic filter
Phase shift of all-pass bi-quadratic filter
What is the phase shift of a all-pass filter?How do you find the phase shift of a bandpass filter?Do filters cause phase shift?What is an all pass ba...
Frequency Limitation on the shift theorem of DFT due to frequency resolution?
Limitation on the shift theorem of DFT due to frequency resolution?
What is frequency resolution of DFT?What are the limitations of FFT?How do you find the frequency resolution in DFT?How do you increase DFT resolutio...
Phase Does a linear phase FIR filter shifted in frequency preserve linear phase?
Does a linear phase FIR filter shifted in frequency preserve linear phase?
How the phase of a filter is related to frequency of a linear phase filter?How the phase of a filter is related to frequency for a linear phase filte...