prensting a video + image + text

Comments

• eduard

  July 19

  Hi @AngeloPisanii,

  Looks like this is possible with OpenCV:

  https://stackoverflow.com/questions/75267154/how-do-i-add-an-image-overlay-to-my-live-video-using-cv2

  So, load your image, video and text (potentially as image), and then draw them in the correct order (first video, then image than text).

  The code should be presented within an inline_script of a trial I suppose.

  Hope this helps,

  Eduard

  
• AngeloPisanii

  July 24

  Hello everyone and thank you very much Eduard.

  I finally decided to use a script on psychopy to automate the creation of my stimuli. 

  I attach the script that automatically takes all the images in my folder and overlays them with the rest of the stimulus (bars moving and text).

  Psychopy saves me as many videos as my images. I will use the videos as stimuli on opensesame. 

  video+image-text.txt

  Hope it's helpful to someone

  Angelo
• AngeloPisanii

  July 24

  Hi Eduard, now the problem is how to present each video randomly. 

  Can I do this by simply adding the meida player and call the list of videos from the loop?

  

  

  Thanks a lot,

  Angelo
• AngeloPisanii

  July 24

  Solved. I just needed to add the video format in the loop column (e.g., “.mp4”)
• AngeloPisanii

  July 24

  HI @eduard, I was able to create and present my videos in random order. Now the problem is that when I press a button the video freezes. I would like to present the video and when the participant responds show me whether the response is correct or not and present the next video. 

  I was able to do this using pictures as a stimulus. But with videos it doesn't seem to work. Basically, when I press the button the first time the video stops, while when I press the button the second time I get feedback on the response. I have done several tests, such as setting the duration of my media player to “0,” which worked with pictures but not with video as a stimulus.

  Would you know how to solve this problem? 

  

  

  
  
• AngeloPisanii

  July 30

  Hi @eduard , I just wanted to tell you that I have tried many possible solutions, even turning everything into an inline script (to create the “correct”, “incorrect” sketchpad, handle the keyboard and return the percentage of correctness of the response) and placing it on top of the video_mediaplayer. Unfortunately, I can't find a solution without having to mash the same key twice. I have also tried writing directly into the video_mediaplayer specifying the allowed response keys and what to do if the keys are correct. 

  In the end it is not a big problem.... I will update if I can find even a partial solution.

  Thanks!

  Angelo
• eduard

  August 5

  Hi Angelo,

  Have you tried to not call a custom Python script?