Screenshots and results of STIRA

Screenshots

Generate image dialog	Context dialog to improve image contrast	Context dialog to simulate and filter noise	Context dialog to inspect image properties
Image and its Fourier spectrum	Image and its histogram per channel	Image and its radially averaged Fourier spectrum

The top menu applies to the image in the active subwindow. In each subwindow, the same menus can be called as contaxt menus with the right mouse button.

Synthetic images generated with STIRA

Ising texture	Perlin clouds (1)	Perlin clouds (2)	log-frequency map	Blurred Bars
Shepp-Logan phantom	Star chart	vertical waves	GretagMacbeth colormap

Processing results generated with STIRA

• Noise Filtering
  

  Original Lena

  Simulated Gaussian noise (sigma=10)

  Filtered using Non- local Means

  Filtered using bivariate wavelet shrinkage

• Deconvolution
  

  Lena (Blurred and noisy)

  Wiener filter

  Richardson-Lucy No regularization

  Richardson-Lucy +Total Variation

• Analysis
  

  Cameraman

  Canny edges

  Watershed