hasView

Check if view is in view set

collapse all in page

Syntax

tf = hasView(vSet,viewId)

Description

example

tf = hasView(vSet,viewId) returns 1 (true), if the view specified by viewId is in the view set, vSet. The function returns 0 (false), if the view is not in vSet.

Examples

collapse all

Open Live Script

Create an empty image view set. 

vSet = imageviewset;

Detect interest points in an image. 

imageDir = fullfile(toolboxdir('vision'),'visiondata','structureFromMotion');
I = imread(fullfile(imageDir, 'image1.jpg'));
points = detectSURFFeatures(rgb2gray(I));

Add a view with ID 1 to the image view set. 

 vSet = addView(vSet,1,'Points',points);

Check if a view with ID 1 is in the view set.

hasView(vSet,1)
ans = logical
   1

Check if a view with ID 2 is in the view set. 

hasView(vSet,2)
ans = logical
   0

Input Arguments

collapse all

Image view set, specified as an imageviewset object.

View identifier, specified as an integer. View identifiers are unique to a specific view.

Output Arguments

collapse all

True or false result indicating if view is in view set vSet, returned as a 1 or 0 data type logical.

See Also

Objects

Introduced in R2020a

Computer Vision Toolbox Documentation

Support