hasdata
Syntax
Description
Examples
Read Until All Data in Datastore Has Been Read
Create a blocked image from a sample image.
bim = blockedImage('tumor_091R.tif');
Create a blockedImageDatastore
object from the blocked image, bim
.
bimds = blockedImageDatastore(bim);
Read blocks from the blockedImageDatastore
until there is no more data to read, that is, until hasdata
returns false
.
while hasdata(bimds) [data, info] = read(bimds); disp(info); end
BlockSub: [1 1 1] Start: [1 1 1] End: [1024 1024 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [1 2 1] Start: [1 1025 1] End: [1024 2048 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [1 3 1] Start: [1 2049 1] End: [1024 3072 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [1 4 1] Start: [1 3073 1] End: [1024 4096 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [1 5 1] Start: [1 4097 1] End: [1024 5120 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [1 6 1] Start: [1 5121 1] End: [1024 6144 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 1 1] Start: [1025 1 1] End: [2048 1024 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 2 1] Start: [1025 1025 1] End: [2048 2048 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 3 1] Start: [1025 2049 1] End: [2048 3072 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 4 1] Start: [1025 3073 1] End: [2048 4096 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 5 1] Start: [1025 4097 1] End: [2048 5120 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [2 6 1] Start: [1025 5121 1] End: [2048 6144 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 1 1] Start: [2049 1 1] End: [3072 1024 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 2 1] Start: [2049 1025 1] End: [3072 2048 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 3 1] Start: [2049 2049 1] End: [3072 3072 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 4 1] Start: [2049 3073 1] End: [3072 4096 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 5 1] Start: [2049 4097 1] End: [3072 5120 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [3 6 1] Start: [2049 5121 1] End: [3072 6144 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 1 1] Start: [3073 1 1] End: [4096 1024 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 2 1] Start: [3073 1025 1] End: [4096 2048 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 3 1] Start: [3073 2049 1] End: [4096 3072 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 4 1] Start: [3073 3073 1] End: [4096 4096 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 5 1] Start: [3073 4097 1] End: [4096 5120 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [4 6 1] Start: [3073 5121 1] End: [4096 6144 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 1 1] Start: [4097 1 1] End: [5120 1024 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 2 1] Start: [4097 1025 1] End: [5120 2048 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 3 1] Start: [4097 2049 1] End: [5120 3072 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 4 1] Start: [4097 3073 1] End: [5120 4096 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 5 1] Start: [4097 4097 1] End: [5120 5120 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3] BlockSub: [5 6 1] Start: [4097 5121 1] End: [5120 6144 3] Level: 1 ImageNumber: 1 BorderSize: [0 0 0] BlockSize: [1024 1024 3]
Input Arguments
bimds
— Blocked image datastore
blockedImageDatastore
object
Blocked image datastore, specified as a blockedImageDatastore
object.
Output Arguments
tf
— Data availability
true
| false
Data availability, returned as a logical scalar, true
or
false
.
Version History
Introduced in R2021a
See Also
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