Create Tool

The Create Tool is a general purpose image creation tool, which can be called from the image calculator sub-tool, for the generation of simulated data of various types. It has the following functional capabiltites.

• rect - create rectangle CP(width, height, cx, cy, ax, ax).
• chequer - create chequer board CP(width, height, ax, ay). Useful for evaluating edge and corner detectors and for masking geometric regions.
• noise - create noise image CP(width, height, ax, ay, noise). The generated image has Gaussian uniform random noise and is intended for Monte-Carlo algorithm evaluations.
• rds - random dot stereogram noisy stereo image CP(width, height, ax, ay, ex, ey, noise).
• delta - generate a delta function CP(width,height,cx,cy).

• ellipse - generate an ellipse to subpixel accuracy CP(width, height, cx, cy, ax, ay).
• elipsiod - generate an ellipsoid to subpixel accuracy CP(width, height, cx, cy, ax, ay).
• sellipse - generate a super ellipse to subpixel accuracy CP( width, height, cx, cy, ax, ay, ex, ey).

• shade - compute shaded image from 3D surface TOS image CP(slant,tilt) using simple Lambertian reflection assumptions.
• fgabor - construct gabor filter in fourier domain with central frequency, bandwidth and orientation given by CP(gb_k, gb_b, theta).

• fshade - constuct fourier transform of approximate shading convolution funtion CP(slant,tilt) which matches TOS roi, allows subsequent Shape-from-shading using a variation on the technique suggested by Pentland.

In addition simple asci matricies can be read from file and converted into images using the input output facility via selection of the appropriate filename parameters.