Video Similarity Swift - ios

Is there any way to find the similar video and duplicate video from gallery though iOS 16 has build in duplicate image finding option but is there any public api for this? I need some ideas how to find the similar videos and duplicated videos in iOS swift?
I tried to find the similar images using vision by calculation Feature Print. It can compare one by one image, I need to find out all the similar or duplicate images at a time by group.

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How to detect an image in a news paper and play a video relevant to it using augmented reality?

I have planned to detect an image in a news paper play the video relevant to it. I have seen several news paper reading AR apps include this feature. But i couldn't find how to do so. How can I do it??
I dont expect any code. But like to know what are the steps I should follow to do this. Thank you.
You need to browse through the available marker-based AR SDKs - such SDKs let you defined in advance the database of images you would like to detect and respond to, and once any of these images is detected during runtime, you get some kind of an event with data on the detected image.
Vuforia is considered a good one and it has good samples, so it is supposed to be easier to start with. You should also check out Kudan, and there are more.

Adding keyword metadata to images in iOS

I've been wrestling with finding a way to add keyword metadata to images in iOS. I've scoured the internet and stackoverflow but haven't found anything specific to adding keywords to images in iOS. I've seen that different applications like Photoshop and Aperture allow you to do this type of thing so, the capability for images is there in general, but is there a way to achieve this in iOS?
Specifically, is it possible to create a new key/value pair and nest it within the image metadata?
Look in the CGImageProperties reference. As you can see, you are allowed to add EXIF dictionary information to an image. This is exactly how Photoshop and Aperture do it. The ImageIO framework will give you the means to write into the EXIF dictionary.

Indetify people in images

there are many sites or albums where you upload your image and you can get a directory of images you appear in. (each person will have in his group all images where he appears in)
I want to write such an app and couldn't find library/ implemented algorithm is there any code or libs I can use for this?
The most straightforward package is http://scikit-learn.org/stable/datasets/labeled_faces.html. This however is just a sample and you will likely have to extensively train your algorithms to get the desired results.

Adding watermark to currently recording video and save with watermark

I would like to know if there is any way to add a watermark to a video which is currently recording and save it with the watermark. (I know about adding watermarks to video files that are already available in app bundle and exporting it with watermark).
iPhone Watermark on recorded Video.
I checked this link. Accepted answer is not good one. The most voted answer is applicable only if there is already a video file in your bundle. (Please read the answer before suggesting that.)
Thanks in advance
For this purpose its better to use GPUImage library (An open source library available in Git hub), It contains so many filter and its possible add overlay using GPUImageOverlayBlendFilter. That contains sample FilterShowCase that explains lot about using the filters. It uses GPU so that it takes the overhead of processing the image. The full credits goes to #Brad Larson the one who created such a great library.

ios: Adding real time filter effects to photos

I want to program an ios app that takes photos but I would like to filter the photo preview in real time. What I mean is implemented in the app called "CamWow" (here is a video of the app: http://www.youtube.com/watch?v=L_o-Bx08YZE ). I curious how this can be done. Has anybody an idea how to build such an app that provides a filtered real time preview of the photo and captures a filtered photo?
As Fraggle points out, on iOS 5.0, you can use the Core Image framework to do image filtering. However, Core Image is limited to the filters they ship with the framework, and I've found that it is not able to process video in realtime in many cases.
As a result, I created my BSD-licensed open source GPUImage framework, which encapsulates the OpenGL ES 2.0 code you need to do GPU-accelerated processing of images and video. I have some examples of the kind of filtering you can do with this in this answer, and you can easily write your own custom filters using the OpenGL Shading Language. The sample applications in the framework show how to do filtering of images with live previews, as well as how to filter and save them out to disk.
I'm looking for the same kind of info (its a pretty hot sector so some devs may not be willing to give up the goods just yet). I came across this, which may not be exactly what you want, but could be close. Its a step by step tutorial to process live video feed.
Edit: I've tried the code that was provided in that link. It can be used to provide filters in real time. I modified the captureOutput method in ViewController.m , commented out the second filtering step ("CIMinimumCompositing") and inserted my own filter (I used "CIColorMonochrome").
It worked. My first few attempts failed because not all filters in Core Image Filter reference are available for iOS apparently. There is some more documentation here.
Not sure if this code is the best performance wise, but it does work.
Edit #2: I saw some other answers on SOverflow that recommended using OpenGL for processing which this sample code does not do. OpenGL should be faster.

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