This operation is the essentials of both median filter and morphological filter with flat structuring element [8, 9].
The methodology behind multiresolution analysis is then presented, based on a morphological pyramid which links a physically significant morphological filter with a dyadic decomposition.
In order to minimize the influence of image acquisition noise on surface area measurements defined in Eq. 3 in the 'Materials and Methods' on 'Comparison of SEM Image Characteristics', we applied a morphological filter with a square kernel of size 7 pixels to all images.
The structure elements of morphological filters are constructed with Gaussian function and a concise criterion is introduced to piecewise optimized structure elements.
MP-PSNR using pyramid decomposition with morphological filters has much better performances than MP-PSNR using pyramid decomposition with linear filters.
Morphological filters are stacked at higher delay with QV set at near 20.
We propose full-reference metric based on multi-scale decomposition using morphological filters in order to better deal with specific geometric distortions in the DIBR-synthesized images.
Eight to ten z-sections with a 0.5- μm step size were deconvoluted to obtain γH2AX foci images for counting using Metamorph (Molecular Probes), by applying morphological filters, Top-hat and H-dome with constant thresholds set at 40 (low) to 1500 (high).
Morphological filters are based on the mathematical morphology based on set theory.
Eight types of multi-scale morphological filters are designed based on the mathematical morphology theory.
