三维体图像处理

对三维体数据进行滤波、分割和执行其他图像处理运算

对三维数据集执行像素运算、局部滤波、形态学及其他图像处理。

App

三维体查看器	查看三维体数据和已标注的三维体数据
三维体分割器	Segment 3-D grayscale or RGB volumetric images

函数

全部展开

三维体显示

`volshow`	Display volume
`labelvolshow`	Display labeled volume
`sliceViewer`	Browse image slices
`orthosliceViewer`	Browse orthogonal slices in grayscale or RGB volume
`obliqueslice`	Extract oblique slice from 3-D volumetric data

图像导入和转换

`adaptthresh`	使用局部一阶统计量的自适应图像阈值
`dicomread`	读取 DICOM 图像
`dicomreadVolume`	Create 4-D volume from set of DICOM images
`dicomContours`	Extract ROI data from DICOM-RT structure set
`imbinarize`	通过阈值化将二维灰度图像或三维体二值化
`niftiinfo`	Read metadata from NIfTI file
`niftiwrite`	Write volume to file using NIfTI format
`niftiread`	Read NIfTI image
`tiffreadVolume`	Read volume from TIFF file

图像算术

`imabsdiff`	两个图像的绝对差
`imadd`	将两个图像相加或在图像中添加常量
`imdivide`	Divide one image into another or divide image by constant
`immultiply`	Multiply two images or multiply image by constant
`imsubtract`	从一个图像中减去另一个图像或从图像中减去常量

几何变换和图像配准

`affine3d`	3-D affine geometric transformation
`imcrop3`	Crop 3-D image
`imref3d`	Reference 3-D image to world coordinates
`imregister`	Intensity-based image registration
`imregdemons`	Estimate displacement field that aligns two 2-D or 3-D images
`imresize3`	Resize 3-D volumetric intensity image
`imrotate3`	Rotate 3-D volumetric grayscale image
`imwarp`	对图像应用几何变换

图像滤波和增强

`fibermetric`	Enhance elongated or tubular structures in image
`fspecial3`	Create predefined 3-D filter
`histeq`	使用直方图均衡增强对比度
`imadjustn`	Adjust intensity values in N-D volumetric image
`imboxfilt3`	3-D box filtering of 3-D images
`imfilter`	多维图像的 N 维滤波
`imgaussfilt3`	3-D Gaussian filtering of 3-D images
`imhistmatchn`	Adjust histogram of N-D image to match histogram of reference image
`imnoise`	向图像添加噪声
`integralBoxFilter3`	3-D box filtering of 3-D integral images
`integralImage3`	Calculate 3-D integral image
`medfilt3`	3-D median filtering

形态学

`bwareaopen`	从二值图像中删除小对象
`bwconncomp`	查找二值图像中的连通分量
`bwmorph3`	Morphological operations on binary volume
`bwskel`	Reduce all objects to lines in 2-D binary image or 3-D binary volume
`imbothat`	Bottom-hat filtering
`imclose`	对图像执行形态学闭运算
`imdilate`	膨胀图像
`imerode`	腐蚀图像
`imopen`	对图像执行形态学开运算
`imreconstruct`	Morphological reconstruction
`imregionalmax`	Regional maxima
`imregionalmin`	Regional minima
`imtophat`	Top-hat filtering
`offsetstrel`	Morphological offset structuring element
`strel`	形态学结构元素
`watershed`	Watershed transform

图像分割

`activecontour`	使用主动轮廓 (snake) 区域增长方法将图像分割成前景和背景
`bfscore`	Contour matching score for image segmentation
`dice`	Sørensen-Dice similarity coefficient for image segmentation
`gradientweight`	Calculate weights for image pixels based on image gradient
`graydiffweight`	Calculate weights for image pixels based on grayscale intensity difference
`imsegfmm`	Binary image segmentation using fast marching method
`imsegkmeans3`	K-means clustering based volume segmentation
`jaccard`	Jaccard similarity coefficient for image segmentation
`superpixels3`	3-D superpixel oversegmentation of 3-D image

图像分析

`bwselect3`	Select objects in binary volume
`edge3`	Find edges in 3-D intensity volume
`imgradient3`	Find gradient magnitude and direction of 3-D image
`imgradientxyz`	Find directional gradients of 3-D image
`imhist`	图像数据的直方图
`regionprops3`	Measure properties of 3-D volumetric image regions

增强图像以进行深度学习

`randomPatchExtractionDatastore`	Datastore for extracting random 2-D or 3-D random patches from images or pixel label images
`centerCropWindow3d`	Create cuboidal center cropping window
`randomCropWindow3d`	Create randomized cuboidal cropping window
`randomAffine3d`	Create randomized 3-D affine transformation
`affineOutputView`	Create output view for warping images

主题

Create Binary Mask Using Volume Segmenter

This example shows how to segment a volume in the Volume Segmenter app.

Work with Blocked Images Using the Volume Segmenter

This example shows how to work with a blocked image in the Volume Segmenter app.

Compute 3-D Superpixels of Input Volumetric Intensity Image

This example shows how to convert 3-D MRI data into a grayscale intensity image of superpixels.

Explore 3-D Volumetric Data with Volume Viewer App

You can view perpendicular cross-sections of 3-D volumetric data using the Volume Viewer app. Adjust the rendering to reveal structures within the volume.

Explore 3-D Labeled Volumetric Data with Volume Viewer App

You can view 3-D labeled volumetric data using the Volume Viewer app. You can view the volume and the labeled volume simultaneously and change the opacity and color map.

Preprocess Volumes for Deep Learning (Deep Learning Toolbox)

Read and preprocess volumetric image and label data for 3-D deep learning.