isequal

(Not recommended) Compare two bigimage objects for equality

The isequal function of the bigimage object is not recommended. Use the blockedImage object instead. For more information, see Compatibility Considerations.

Syntax

tf = isequal(bigimg1,bigimg2)

Description

tf = isequal(bigimg1,bigimg2) returns true if big images bigimg1 and bigimg2 have the same spatial referencing, underlying data type, and block size. Pixel values are only compared if the metadata is equal, and the comparison ends early when unequal pixel values are found. isequal does not consider file names, masks, and other class properties.

Input Arguments

bigimg1 — First big image

bigimage object

First big image, specified as a bigimage object.

bigimg2 — Second big image

bigimage object

Second big image, specified as a bigimage object.

Output Arguments

tf — Big images are equal

logical scalar

Big images bigimg1 and bigimg2 are equal, returned as a logical scalar.

Data Types: logical

Version History

Introduced in R2019b

R2021a: isequal function is not recommended

Not recommended starting in R2021a

The isequal function of the bigimage object is not recommended. Use a blockedImage object instead. The blockedImage object offers several advantages including extension to N-D processing, a simpler interface, and custom support for reading and writing nonstandard image formats.

Although there are no plans to remove the bigimage object and its isequal at this time, switch to the blockedImage to take advantage of the additional capabilities and flexibility.