imcrop3
Crop 3-D image
Syntax
Description
Examples
Crop 3-D Volume
Load a 3-D volume into the workspace.
load("mristack")
Display the image.
volshow(mristack);
Specify the size and position of the cuboidal crop region. Then, crop the volume using imcrop3
.
cropRegion = [30 40 10 100 100 10]; Vcropped = imcrop3(mristack,cropRegion);
Display the cropped image.
volshow(Vcropped);
Crop 3-D Image Volume Using Fixed Off-Center Spatial Extent
Load a 3-D MRI image. Use the squeeze
function to remove any singleton dimensions.
load('mri.mat','D'); volumeData = squeeze(D);
Display the image.
volshow(volumeData);
Create a Cuboid
object and specify the cropping window size in all three dimensions.
c = images.spatialref.Cuboid([30,90],[30,90],[1,20]);
Crop the image based on the Cuboid
dimensions.
croppedVolume = imcrop3(volumeData,c);
Display the cropped image.
volshow(croppedVolume);
Center Crop 3-D Image to Target Size
Load a 3-D MRI image. Use the squeeze
function to remove any singleton dimensions.
load mri;
D = squeeze(D);
Display the image.
volshow(D);
Specify the target size of the cropping window.
targetSize = [64 64 10];
Create a center cropping window that crops an image from its center.
win = centerCropWindow3d(size(D),targetSize);
Crop the image using the center cropping window.
Dcrop = imcrop3(D,win);
Display the cropped image.
volshow(Dcrop);
Input Arguments
V
— Volume to be cropped
numeric array | logical array | categorical array
Volume to be cropped, specified as a numeric, logical, or categorical array.
V
can be a 3-D array that represents a single channel 3-D volume
or a 4-D array that represents a multichannel 3-D volume. If V
represents a multichannel 3-D volume, then imcrop3
crops the first
three dimensions only.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
| logical
| categorical
cuboid
— Size and position of crop volume
6-element numeric vector | Cuboid
object
Size and position of the crop volume in spatial coordinates, specified as a
6-element vector of the form [xmin ymin zmin width height depth]
or a
images.spatialref.Cuboid
object.
Data Types: single
| double
| int8
| int16
| int32
| int64
| uint8
| uint16
| uint32
| uint64
Output Arguments
Vout
— Cropped volume
logical, numeric, or categorical array
Cropped volume, returned as a logical, numeric, or categorical array of the same
class as the input volume V
.
Extended Capabilities
Thread-Based Environment
Run code in the background using MATLAB® backgroundPool
or accelerate code with Parallel Computing Toolbox™ ThreadPool
.
This function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.
Version History
Introduced in R2019bR2021b: Support for thread-based environments
imcrop3
now supports thread-based
environments.
See Also
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