webcam input not accessible in matlab

this question regarding the "winvideo" input I am want to access the dell build in webcam so it shows error line when I try to run program. but if I use cam=webcam then I can access the webcam it shows the video and I also reinstall image accusation package toolbox several time. I am using Matlab 2015a. any advice deeply appreciates.

[Walter Roberson]

Did you install the Support Package for Generic OS Video?

https://www.mathworks.com/matlabcentral/fileexchange/45183-image-acquisition-toolbox-support-package-for-os-generic-video-interface

[theking]

yes sir i did when try to open webcam in preview mode it can open. but i use obj=videoinput('winvideo',1,'MJPG_1280x720');

error detail below:

syntax Error using videoinput (line 393) Undefined variable "imaq" or class "imaq.winvideo1_1_source". Error in ColorDetectioninMATLABLiveVideo (line 2) obj=videoinput('winvideo',1,'MJPG_1280x720');

[theking]

able to solve the issue by uninstall it and reinstall matlab . thx walter robertson for install support packge really help.

Answer 1

[Sanika Patil]

this question regarding the "winvideo" input I am want to access the dell build in webcam so it shows error line when I try to run program. but if I use cam=webcam then I can access the webcam it shows the video