simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus (Operator)

Name

simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus — Simulate an uniform out-of-focus blurring of an image.

Warning

simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus is obsolete and is only provided for reasons of backward compatibility.

Signature

Description

simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus simulates out-of-focus blurring of an image. All parts of the image are blurred uniformly. BlurringBlurringBlurringBlurringBlurringblurring specifies the extent of blurring by defining the “blur radius” (out-of-focus blurring maps each image pixel on a small circle with a radius of BlurringBlurringBlurringBlurringBlurringblurring - specified in “number of pixels”). If specified less than null, the absolute value of BlurringBlurringBlurringBlurringBlurringblurring is used. Simulation of blurring is done by a convolution of the image with a blurring specific impulse response. The convolution is realized by multiplication in the Fourier domain.

Parallelization

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Automatically parallelized on tuple level.
• Automatically parallelized on channel level.

Parameters

Result

simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus returns 2 (H_MSG_TRUE) if all parameters are correct. If the input is empty simulate_defocussimulate_defocusSimulateDefocussimulate_defocusSimulateDefocusSimulateDefocus returns with an error message.

Possible Predecessors

gen_psf_defocusgen_psf_defocusGenPsfDefocusgen_psf_defocusGenPsfDefocusGenPsfDefocus, simulate_motionsimulate_motionSimulateMotionsimulate_motionSimulateMotionSimulateMotion, gen_psf_motiongen_psf_motionGenPsfMotiongen_psf_motionGenPsfMotionGenPsfMotion

Possible Successors

wiener_filterwiener_filterWienerFilterwiener_filterWienerFilterWienerFilter, wiener_filter_niwiener_filter_niWienerFilterNiwiener_filter_niWienerFilterNiWienerFilterNi

See also

gen_psf_defocusgen_psf_defocusGenPsfDefocusgen_psf_defocusGenPsfDefocusGenPsfDefocus, simulate_motionsimulate_motionSimulateMotionsimulate_motionSimulateMotionSimulateMotion, gen_psf_motiongen_psf_motionGenPsfMotiongen_psf_motionGenPsfMotionGenPsfMotion

References

Reginald L. Lagendijk, Jan Biemond: Iterative Identification and Restoration of Images, Kluwer Academic Publishers Boston/Dordrecht/London, 1991
M. Lückenhaus:“Grundlagen des Wiener-Filters und seine Anwendung in der Bildanalyse”; Diplomarbeit; Technische Universität München, Institut für Informatik; Lehrstuhl Prof. Radig; 1995.

Module

Foundation