Restored image with Constrained Least Squares
With 2nd order derivative smoothing



Gaussian Filter + Gaussian Noise

Gaussian Filter + Gaussian Noise(st = 5)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Gaussian Filter + Gaussian Noise(st = 13)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Gaussian Filter + Gaussian Noise(st = 21)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Sinusoidal Waveform + Gaussian Noise


Sinusoidal Waveform + Gaussian Noise(st=5)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Sinusoidal Waveform + Gaussian Noise(st =13)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Sinusoidal Waveform + Gaussian Noise(st = 21)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Camera Motion  + Gaussian Noise


Camera Motion  + Gaussian Noise(st = 5)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Camera Motion  + Gaussian Noise(st =13)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing

Camera Motion  + Gaussian Noise(st =21)

Restored image with Constrained Least 
Squares with 2nd order derivative smoothing