There are several types of image segmentation techniques, each suited for different tasks and applications. The most basic type is thresholding, where the image is divided into different segments based on pixel intensity. This technique is effective for simple problems, like separating objects from the background, but it may fail in complex images with varying lighting conditions. A more advanced type is semantic segmentation, which labels each pixel in an image with a category (e.g., car, person, road). This is commonly used in tasks like autonomous driving, where understanding the entire scene is essential. Instance segmentation takes semantic segmentation a step further by not only classifying each pixel but also distinguishing between different objects of the same class (e.g., differentiating between two people). Mask R-CNN is a popular method for instance segmentation. Another important type is region-based segmentation, which involves identifying and extracting specific regions of interest, typically using region-growing or watershed algorithms. These techniques work by starting from a seed point and expanding outward based on pixel similarity. Edge detection is another form of segmentation where the boundaries of objects in an image are identified. Techniques like Canny edge detection and Sobel filters are used to detect edges and segment objects based on those boundaries. Each segmentation type is chosen based on the problem at hand and the complexity of the images being processed.
What are the types of image segmentation?
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