Bsoft function

Source:

Description:

Algorithm:

	A power spectrum with its origin at the center.

	Functions:

		angle = atan(y/x) - astigmatism_angle

		s2 = reciprocal space distance squared

		defocus_min = defocus_avg - defocus_dev

		defocus_max = defocus_avg + defocus_dev

		cmin = defocus_min/(lambda*lambda*Cs)

		cmax = defocus_max/(lambda*lambda*Cs)

		cavg = 2*defocus_avg/(lambda*lambda*Cs)

		smin2 = cmax - sqrt(cmax*cmax + s2*(s2 - cavg))

		smax2 = cmin - sqrt(cmin*cmin + s2*(s2 - cavg))

		radius = sqrt(2*s2*(smax2*cos(angle)*cos(angle)+

					smin2*sin(angle)*sin(angle))/(smax2+smin2))

	The radial average is returned as a new 1D image.

Arguments:

Returns:

Prototype:

Functions used:

Other objects included: