as a semester project me and my group had to create a game. We decided to make a 2D racing game, how is it different from a normal 2D racing game is that we use image processing to control the cars. The camera detects the users hands and based on their location it moves the car. So far we were able to do most of the code, except one part..
My question is, how do we assign the image (car) functionality based on the location of the hand.
We are using OpenCV, and it did everything so far, but as for functionality to the image, we couldnt figure anything out. I heard that SDL is very good when trying to make a 2D game such as this but I couldnt make it work with OpenCV.
I need suggestions on how to assign functionality to an image OR maybe change the image into something else sprite/object making it easier to assign functionality. I am open to any suggestions. I have tried doing this using only OpenCV/C++ methods, such as waitkey and mouse events but they will not work when we need the data from the video input.
Thank you
Related
I have the basics of AE but I don't know everything, I would like to make an animation like the one in the link, with phone, if someone can tell me where to find such tutorial then that would be great. The animation of the phone is my main problem, it looks like a 3d model in sketch style. https://www.planradar.com/wp-content/uploads/2019/05/iPad_EN-1.mp4
First of all you need vector paths for drawing the tablet/phone it the style you have shown. (like in this video https://youtu.be/zSlXOIsfjLY?t=123)
Next you just need to put that all in 3D via camera settings and each layer as an 3D object and work this out step by step.
I think you should find many examples on youtube for what you are looking for.
I am extending an existing OpenGL project with new functionality.
I can play a video stream using OpenGL with FFMPEG.
Some objects are moving in the video stream. Co-ordinates of those objects are know to me.
I need to show tracking of motion for that object, like continuously drawing a point or rectangle around the object as it moves on the screen.
Any idea how to start with it?
Are you sure you want to use OpenGL for this task? Usually for computer vision algorithms, like motion tracking one uses OpenCV. In this case you could simply use the drawing functions of OpenCV as documented here.
If you are using OpenGL you might have a look at this question because in this case I guess you draw the frames as textures.
I wish to display an image through my projector via MATlab. The projected image should be full sized without any figure handle bars (menu bar, the grey stuff which encompasses a figure etc).
Similar to a normal presentation when the projector projects the complete slide or image, I want to do the same using MATlab as my platform. Any thoughts or idea? Can we access the projector using MATlab? My first thoughts were to send data to the corresponding printer IP but that doesn't seem to work :/
If you know the relevant C++ command or method to do this, please suggest a link or a library, so that I may try and import it on my MATlab platform.
Reason for doing this: Projector-Camera calibration for photo-metric correction of my projector display output.
Assuming your projector is set as a second display, you can do something very simple. Get the monitor position information and set the figure frame to be the monitor size
// plot figure however you want
monitorFrames = get(0,'MonitorPositions');
secondMonitor = monitorFrames(2,:);
secondMonitor(3) = secondMonitor(3)-monitorFrames(1,3);
set(gcf,'Position',secondMonitor);
This will put the figure window onto the second monitor and have it take up the whole screen.
You can then use this to do whatever calibration you need, and shift this window around as necessary.
NOTE:
In no way am I saying this is the ideal solution. It is quick and dirty, and will not use any outside libraries.
UPDATE
If the above solution does not suit your specific needs, what you could always do is save the plot as an image, then have your MATLAB script, call a c++ script that opens the image and makes it full screen.
This is non-trivial. For Windows you can use the WindowAPI submission to the MATLAB File Exchange. With the WindowAPI function installed you can do
WindowAPI(FigH, 'Position', 'full');
For Mac and Linux you can use wrappers around OpenGL to do low level plotting, but you cannot use standard MATLAB figure windows. One nice implementation is PsychToolbox.
I am making a simple game for fun and learning using SFML for 2D stuff. The game is rather simple.. I loath to say it is a HoG (hidden object game) but I guess that would be a way to get my point across quickly. Basically I am using SFML to load and display 2D still art and capture mouse events.
Anyway... I would like to add video clips to my project. All the art is rendered and for example.. if my image is of a park with a fountain, I would like to have a looping video of the water running so the image has some life even though it is just a still.
All I need is the ability to play videos in the window, preferably compatible with sfml but I am in the planning projects I can swap to something else if needed. The project will have a set resolution (not scalable) and I just want to load the video and play them at a certain pixel location in x,y. So if I have a 1200x720 image I play a 100x100 pixel video on loop at a certain location to make the water of the fountain move.
Now then I am thinking I can just load 2D sprites onto of the video matching the background image to do simple masking. There are some formats like quicktime that can embed an alpha channel directly into the video and if that is supported awesome.. but some planning in the set design should mean that is not really needed. Though if that was supported more options open in set design.
I am pretty good with video as I am a 3D animator by profession, new to programming as a learning hobby. So the format and container of the video is not really an issue though I have been working with OGV a lot recently.
What I see as it needing is
Load multiple videos at once
Play with out any boarders or anything
Play at specific locations in a window.
loop seamlessly
Allow zdepth so I can place sprites onto of it
Dose anyone know were I would go to start looking into this? It seams like something that could possibly be a library I could use? Preferably an open source one as this is just a for fun project nothing commercial.
Thanks in advance for any ideas you may have.
Imagine I have a video playing.. Can I have some sort of motion graphics being played 'over' that video.. Like say the moving graphics is on an upper layer than the video, which would be the lower layer..
I am comfortable in a C++ and Python, so a solution that uses these two will be highly appreciated..
Thank you in advance,
Rishi..
I'm not sure I understand the question correctly but a video file is a sequence of pictures that you can extract (for instance with the opencv library C++ interface) and then you can use it wherever you want. You can play the video on the sides of an opengl 3D cube (available in all opengl tutorials) and other 3D elements around it.
Of course you can also displays it in a conventional 2D interface and draw stuff on top of it, but for this you need a graphical ui.
Is it what you thought or am I completely lost?