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图像分割 -凯发k8网页登录

分割图像

图像分割是将图像分割成多个部分或区域的过程。这种分割通常基于图像中像素的特征。例如，在图像中查找区域的一种方法是寻找像素值中的突变不连续性，这通常表示边缘。这些边缘可以定义区域。其他方法根据颜色值或纹理将图像分成多个区域。

app

对彩色图像进行阈值化处理
通过细化区域来分割图像
segment 3-d grayscale or rgb volumetric images

函数

使用 otsu 方法计算全局图像阈值
multilevel image thresholds using otsu’s method
使用 otsu 方法的全局直方图阈值
使用局部一阶统计量的自适应图像阈值
select contiguous image region with similar gray values using flood-fill technique
分水岭变换
使用主动轮廓 (snake) 区域增长方法将图像分割成前景和背景
segment image into foreground and background using graph-based segmentation
segment image into foreground and background using iterative graph-based segmentation
segment image into two or three regions using geodesic distance-based color segmentation
binary image segmentation using fast marching method
calculate weights for image pixels based on image gradient
calculate weights for image pixels based on grayscale intensity difference
基于 k 均值聚类的图像分割
k-means clustering based volume segmentation
图像的二维超像素过分割
3-d superpixel oversegmentation of 3-d image
burn binary mask into 2-d image
overlay label matrix regions on 2-d image
convert label matrix to cell array of linear indices
find region boundaries of segmentation
jaccard similarity coefficient for image segmentation
sørensen-dice similarity coefficient for image segmentation
contour matching score for image segmentation

主题

使用图像分割器进行分割

  • getting started with image segmenter

    segment an image using different techniques, refine and save the binary mask, and export the segmentation code by using the image segmenter app.


  • image processing toolbox 图像数据包包含三维体数据示例。

使用色彩分割器进行分割

使用 gabor 滤波器、超像素和其他技术进行分割


  • classify land types based on color features using k-means clustering and superpixels.
  • segment lungs from 3-d chest scan
    perform a 3-d segmentation using active contours (snakes) and view the results using the volume viewer app.

使用三维体分割器进行分割


  • this example shows how to segment a volume in the volume segmenter app.

  • this example shows how to create a semantic segmentation of a volume using the volume segmenter app.

  • segment a volumetric image that could be too large to fit into memory by converting the volume to a blocked image.
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