Press Era 4 to remove 4-connected region(s), or volumes, of interest by size (less than or greater).

Press Era 8 to remove 8-connected region(s), or volumes, of interest by size (less than or greater).

Press Fil 4 to fill 4-connected region(s), or volumes, of interest by size (less than or greater).

Press Fil 8 to fill 8-connected region(s), or volumes, of interest by size (less than or greater).

Press Ero 4 to erode the region(s), or volumes, of interest using the 4-connected neighbours.

Press Ero 8 to erode the region(s), or volumes, of interest using the 8-connected neighbours.

Press Dla 4 to dilate the region(s), or volumes, of interest using the4-connected neighbours.

Press Dla 8 to dilate the region(s), or volumes, of interest using the 8-connected neighbours.

Press Iso to delete isolated pixels in the region(s), or volumes, of interest.

Press Fil1 to fill single pixel holes in the region(s), or volumes, of interest.

Press Fili to fill all interior holes in the region(s), or volumes, of interest.

Press Cnt4 to count the number of 4-connected objects and report the number of pixels for each object.  An image is created in which each pixel is labeled according to which object it belongs to.

Press Cnt8 to count the number of 8-connected objects and report the number of pixels for each object.  An image is created in which each pixel is labeled according to which object it belongs to.

Press Open to open the region(s), or volumes, of interest (Erode 4-connected, followed by Dilate 4-connected).

Press Clos to close the region(s), or volumes, of interest (Dilate 4-connected, followed by Erode 4-connected).

Press Edgi to replace the region(s), or volumes, of interest with its internal edge.

Press Edge to replace the region(s), or volumes, of interest with its external edge.

Press Edgs to replace the region(s), or volumes, of interest with its internal and external edge.

Press Skel to replace the region(s), or volumes, of interest with its skeleton.

Press Pnt to perform erode (4-connected) until no more pixels can be eroded without completely removing the region(s), or volumes, of interest.

Press E-S to perform edge statistics on a region, or volume, while eroding (4-connecting), until no more pixels remain.

Press Segm (volume of interest only) to find the connected segments of a volume of interest. A FilG is initially performed using a single point the user placed. A directed connection procedure is performed to find the pixels which are connected in the same direction. Images are created in which each pixel, is labeled according to which segment the pixel belongs to. Only segments greater than a supplied Size will be shown.

Size

Enter the minimum # pixels a segment must have to be shown.

Note

Enter values for Lo and Hi for the FilG operation.

Press Lin (region of interest only) to remove objects that have width less than 1 pixel or that have a length 4 times the width of the object (the width must be less than 4 pixels).

Note

The width pertains to the maximum width.

Press Cln to remove pixels that do not have at least n 8-connected neighbors in a 3x3 neighborhood.

Connect Size

Enter the minimum #  of neighbors a pixel must have in the 3x3 neighborhood to be kept.

Object Size

Enter the minimum # pixels an object must have to avoid being cleaned.

Select 0 to interpret the region outside the image as not being filled.

Select 1 to interpret the region outside the image as being filled.

Press Box to create a 4-sided region(s), or volumes, of interest that connects the four most extreme points of a region(s), or volumes, of interest.

Press Connect to connect the end points of an incomplete contour.

Select Spurs & Corners to remove spur pixels and corner pixels prior to connecting.

Press Smooth to smooth the region(s), or volumes, of interest by calculating a vector containing the distance from the center of mass of a region(s), or volumes, of interest, ordered by the angle from the top-midline.  The vector has a wide gaussian filter applied to it, then new point coordinates are calculated using the smoothed distances.

# Gauss

Enter the number of times to apply the gaussian filter to the vector before calculating new coordinates.

Press Keep to keep all pixels with the highest gray levels in the volume of interest.

Enter the percentage, in %, of the highest gray levels to keep.

Press Remove to remove all pixels with the highest gray levels in the volume of interest.

Enter the percentage, in %, of the highest gray levels to remove.

Press Nbr to remove objects where less than % of the region of interest edge pixels are adjacent to a pixel with a non-zero gray level.

Enter the percentage, in %, of edge pixels that must be adjacent to a non-zero pixel.

Press Connect to connect the end points of an incomplete contour for each slice in the volume of interest.

Select Spurs & Corners to remove spur pixels and corner pixels prior to connecting.