Image Segmentation

In computer vision, image segmentation is the process of partitioning a digital image into multiple segments (sets of pixels, also known as superpixels). The goal of segmentation is to simplify and/or change the representation of an image into something that is more meaningful and easier to analyze. Image segmentation is typically used to locate objects and boundaries (lines, curves, etc.) in images. More precisely, image segmentation is the process of assigning a label to every pixel in an image such that pixels with the same label share certain visual characteristics.

The result of image segmentation is a set of segments that collectively cover the entire image, or a set of contours extracted from the image (see edge detection). Each of the pixels in a region are similar with respect to some characteristic or computed property, such as color, intensity, or texture. Adjacent regions are significantly different with respect to the same characteristic(s). When applied to a stack of images, typical in medical imaging, the resulting contours after image segmentation can be used to create 3D reconstructions with the help of interpolation algorithms like Marching cubes.

Read more about Image SegmentationApplications, Thresholding, Clustering Methods, Compression-based Methods, Histogram-based Methods, Edge Detection, Region-growing Methods, Split-and-merge Methods, Partial Differential Equation-based Methods, Graph Partitioning Methods, Watershed Transformation, Model Based Segmentation, Multi-scale Segmentation, Semi-automatic Segmentation, Trainable Segmentation, Segmentation Benchmarking

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Binary Image - Image Segmentation
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... one-dimensional signals and does not trivially transfer to higher-dimensional images ... authors to investigate coarse-to-fine schemes for image segmentation ... Unfortunately, however, the intensity of image features changes over scales, which implies that it is hard to trace coarse-scale image features to finer scales using iso-intensity information ...
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... The solution is called segmentation, a manual or automatic procedure that can remove the unwanted structures from the image ...

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