Fig. 2
From: Automated image segmentation for accelerated nanoparticle characterization
The first six steps in the image preprocessing pipeline. Clockwise from top left: (a) the original image; (b) the original image resized to 128 × 128 pixels; (c) a sharpening mask applied to (b); (d) a Gaussian Blur applied to (c); (e) the binary mask resulting from Gaussian thresholding on (d), overlaid by the bounding box in red; (f) image (b) cropped to the coordinates of the bounding box in (e). The axis labels for all images show pixel dimensions; the axis bounds for (f) are relative to (b). The composition of this nanoparticle is Au40Ag10Cu10Ni40. The original image, shown in (a) has a magnification of 1,500,000 × and a resolution of 1024 × 1024 pixels.
