I have the, in my opinion, simple problem of disabling image detection with the AR Camera. I have the problem, that my app detects an image from the image library and spawns an object etc. everything according to plan.
But the problem is that if move the camera over another detectable image, it recognizes it. This is bad not because it spawns something additionaly but because you can "collect" the images in my app, so it unlocked the other detected one even though it shouldn´t.
So how can I disable image detection without turning off the AR-Camera?
I so far tried to simply disable the "ARManager" and the "ARTrackedImageManager" script (.enabled=false), but it didn´t solve my problem, because the app still detects other images.
Hope I could explain what my question and problem is properly. Any help is appreciated!
It really depends on what library you're using to detect the image. Generally, most marker tracking libraries will create a marker object in your Unity scene. You can disable these marker objects after you find one, and only leave the marker you're interested in. Make sure you also set the number of tracked images to 1 so you won't accidentally find two markers in one frame.
Related
Currently I'm using this library:
https://pub.dev/packages/camera and it has setFocusMode to either Auto or locked, but I need a way to be able to get manual focus mode for camera, where user can tap in camera feed and the focus should be adjusted accordingly.
How do I go about implementing this in my app?
I found this plugin https://pub.dev/documentation/manual_camera/latest/. Does this work? you could use focus distance. If you could get the distance of the object you could set it that way. It's almost like shooting out a ray in game programming. I don't know if this is possible to do but maybe using the size of the objects in the image you could get the distance. someone else has probably already figured this out.
I want to create a slider without an outline.
Like this one:
Note rounded edges.
I assume I need to create a sprite for that. Unfortunately, I can't find any good tutorials on sprites for sliders. I think the easiest way would be to edit the built-in one but I don't know how to get it for editing.
This is how the original slider from my Unity looks like:
Note the outline.
So, surprising solution that should be available to all of us.
Put the default slider in and go to the Source Image for both the Background and Handle. Instead of using what is there, change it to another Unity Standard sprite called TouchpadSprite. This should do the trick. Not sure if the fact that this is called 'touchpad'sprite will cause a problem when make a PC game, but I doubt it. FYI the TouchpadSprite is from the "Standard Assets (for Unity 2017.3)" that is available for free in the Unity Asset Store. Feel free to only import the sprite itself. The Asset Pack itself is pretty large, but there is a lot of good/useful stuff in there.
Also, you will have to increase the Pixels Per Unit Multiplier value. My picture shows what I had to increase it to. This will allow you to choose the rounding of your edges as well. Play with it and let me know if it works.
Hope this helps!
Please tell me how to solve this problem.
Where to start and which way to go.
I have an image with some buttons :
How can i detect coordinates of blue round button for example?
The difficulty lies in the fact that these are not application buttons, but just a picture on the desktop.
I understand that this is a vast and complex question, but tell me at least the right way.
It will be useful to many people.
The first thing I can imagine is to do a desktop screen, and then try to detect pixels with blue color.
You don't need to do manual image detection because Apple's vision framework already does this. You can use it to detect rectangular regions, detect text, or recognize and image within an image, depending on your needs.
See Detecting Objects in Still Images
i want to make a live color detection using camera on android in unity. apps that i want is like "color grab" on playstore.
anyone can help me how it works? or how to make it on unity?
Well SO isn't a script providing service: always try to provide what you have tried already before asking a question. If you don't have any script, at least expose you way you want to do it, the steps you think are needed, ...
Anyway, I'd advise you to take a look at Unity Texture2D.ReadPixels() method:
display what you need on screen
when the user touch a place, call for ReadPixels()
then retrieve the color of the desire location on the texture using Texture2D.GetPixel()
If you want to search for a larger area (not a single pixel), you can look for all the pixels around the wanted location and then get the average color found.
Hope this helps,
I'm a noob to this forum, but wanted to give it a try.
I'm currently learning Objective-C and Cocoa; trying to build my first iPhone app.
One thing I'm working on is allowing the user to cut his/her face from an image they have taken and paste it into another image. (The idea is cut from one image and paste into another image with a spot for a face to go.)
How can this be done? I am thinking I would allow the user to just touch and drag over their face, in the shape of a rectangle, and then allow them to copy.
Thanks for the help.
Ok, nevertheless your bit arrogant style of asking, here are some guidelines about how to start: generic obj-c/iOS development (start from hello world); UIImage class; camera API; image processing algorithms, face detection algorithms. Go on gradually and do not wish to resolve all problems at once. Write first an application that simple loads an arbitrary photo and shows it to the user. Then modify it that you can crop a specified rectangular area from the image and save it into the new file. Then write an app that switches on the camera that you can take an image and save it to the disk. Then unite what you wrote that you save only a cropped area of the captured image.
When you arrive to this point, you will know much more about software development image handling. AFTER THIS you can start looking for image processing algorithms. Start also here with something simple like a trivial blur filter or similar implemented by you. If you know already a bit of image processing, search for face detection algorithms on the net. It is even possible that you will find some ready framework that includes also these features, or at least you will understand the concepts. You can even come back here to stack overflow and ask for suggestions about a good face detection algorithms, however we still prefer if you have chosen already one and have some concrete issue with it.