In my app I use PhotosPicker to select images. After selection the images the image data will be saved in a CoreData entity - this works fine. However, When the user wants to add more images and go back to adding photos with PhotosPicker - how can I reference the already added images and show them as selected in PhotosPicker? The imageIdentifier is not allowed to use, so how can I do get a reference to the selected images to display them as selected in PhotosPicker? Thanks for any hint!

i do not really know how this works but hi I am Philemon. for a school assignment I need to program a app I have 2 years for this and it is for people that are interested in coding. I want to make a iOS app that can make 3d models from pictures (photogrammetry) and I know that there are already apps for this but I want to code this myself. I have a little bit of experience coding c# in unity but I really don't know where to start can someone help me? and I know that apple has reality kit but I want that people without a LiDAR Scanner can use this too. so where do I start witch language do I need to learn? every comment is welcome!!! kind regards Philemon

how can we change the image quality, size, camera and cadence used during RoomPlan's scanning. We are getting the images from RoomCaptureSession.

Hello Apple Developer Community, I'm excited to make my first post here and am seeking guidance for a feature I'd like to implement in my app. My objective is to enable users to select an image and crop it. Ideally, there should be a visible indicator, like a rectangle, to show the area that will be cropped. Upon clicking the save button, the image would be saved with the selected cropped area. I'm aiming for functionality to the image editor in the Photos app. Is there a straightforward method or integration for this that adheres to Apple's native frameworks, without resorting to external GitLab repositories? Thank you in advance for your assistance. Best regards, Nicola

I'm working on a very simple App where I need to visualize an image on the screen of an iPhone. However, the image has some special properties. It's a 16bit, yuv422_yuy2 encoded image. I already have all the raw bytes saved in a Data object. After googling for a long time, I still did not figure out the correct way. My current understanding is first create a CVPixelBuffer to properly represent the encoding information. Then conver the CVPixelBuffer to an UIImage. The following is my current implementation. public func YUV422YUY2ToUIImage(data: Data, height: Int, width: Int, bytesPerRow: Int) -> UIImage { return rosImage.data.withUnsafeMutableBytes { rawPointer in let baseAddress = rawPointer.baseAddress! let tempBufferPointer = UnsafeMutablePointer<CVPixelBuffer?>.allocate(capacity: 1) CVPixelBufferCreateWithBytes( kCFAllocatorDefault, width, height, kCVPixelFormatType_422YpCbCr16, baseAddress, bytesPerRow, nil, nil, nil, tempBufferPointer) let ciImage = CIImage(cvPixelBuffer: tempBufferPointer.pointee!) return UIImage(ciImage: ciImage) } } However, when I execute the code, I have the followin error -[CIImage initWithCVPixelBuffer:options:] failed because its pixel format v216 is not supported. So it seems CIImage is unhappy. I think I need to convert the encoding from yuv422_yuy2 to something like plain ARGB. But after a long tim googling, I didn't find a way to do that. The closest function I cand find is https://developer.apple.com/documentation/accelerate/1533015-vimageconvert_422cbypcryp16toarg But the function is too complex for me to understand how to use it. Any help is appreciated. Thank you!

Hello, I came across the Object Capture for iOS example from WWDC23, which utilizes LiDAR sensor. However, I’m interested in using the TrueDepth camera system instead. What I have tried is to save depth photos (.HEIC) to the Images/ folder (based on modifying the example below), which is hopefully used by the Photogrammetry session. But I haven’t been successful so far in starting the 3D reconstruction. Could there be something I’ve missed, or is the Object Capture sample code exclusively designed for LiDAR? Or maybe .HEIC is not the right format to use? Thank you for your assistance. import AVFoundation import UIKit class DepthPhotoCapture: NSObject, AVCapturePhotoCaptureDelegate { let photoOutput = AVCapturePhotoOutput() let captureSession = AVCaptureSession() override init() { super.init() setupCaptureSession() } func setupCaptureSession() { // Get the front camera (TrueDepth camera) guard let frontCamera = AVCaptureDevice.default(.builtInTrueDepthCamera, for: .video, position: .front) else { print("Unable to access front camera!") return } do { // Create an input object from the camera let input = try AVCaptureDeviceInput(device: frontCamera) // Add the input to the capture session captureSession.addInput(input) } catch { print("Unable to create AVCaptureDeviceInput: \(error)") } // Check if depth data capture is supported if photoOutput.isDepthDataDeliverySupported { // Enable depth data capture photoOutput.isDepthDataDeliveryEnabled = true } // Add the photo output to the capture session captureSession.addOutput(photoOutput) // Start the capture session captureSession.startRunning() } func captureDepthPhoto() { // Create a photo settings object let photoSettings = AVCapturePhotoSettings(format: [AVVideoCodecKey: AVVideoCodecType.hevc]) photoSettings.isDepthDataDeliveryEnabled = photoOutput.isDepthDataDeliveryEnabled // Capture a photo with depth data photoOutput.capturePhoto(with: photoSettings, delegate: self) } // Implement the AVCapturePhotoCaptureDelegate method func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) { guard let imageData = photo.fileDataRepresentation() else { print("Error while generating image from photo capture data.") return } // Get the documents directory let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first! // Append the image directory and a unique image name let fileURL = documentsDirectory.appendingPathComponent("Images/").appendingPathComponent(UUID().uuidString).appendingPathExtension("heic") do { // Write the image data to the file try imageData.write(to: fileURL) print("Saved photo with depth data to \(fileURL)") } catch { print("Failed to write the image data to disk: \(error)") } } }

Hello. I have three questions about the Sensitive Content Analysis (SCA) framework: SCA seems to be asynchronous. Is there a limit to how much a single app can send through it at a time? For video analysis, can the video be broken into smaller chunks, and then all chunks be hit concurrently? Can a video stream be sampled as it's being streamed? e.g. Maybe it samples one frame every 3 seconds and scans those? Thanks.

Hi iOS community need your help. I am working on an application where I am capturing photo from the back camera using AVCaptureSession. It is working fine with the devices running iOS17+ but I am facing an error on device iPhone X running iOS 16.7.4 ERROR: ` error: Optional(Error Domain=AVFoundationErrorDomain Code=-11803 "Cannot Record" UserInfo={NSUnderlyingError=0x283f0b780 {Error Domain=NSOSStatusErrorDomain Code=-16409 "(null)"}, NSLocalizedRecoverySuggestion=Try recording again., AVErrorRecordingFailureDomainKey=3, NSLocalizedDescription=Cannot Record}) My Code here: final class CedulaScanningVC: UIViewController { var captureSession: AVCaptureSession! var stillImageOutput: AVCapturePhotoOutput! var videoPreviewLayer: AVCaptureVideoPreviewLayer! var delegate: ScanCedulaDelegate? override func viewDidLoad() { super.viewDidLoad() } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) } override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) self.captureSession.stopRunning() } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) setupCamera() } // MARK: - Configure Camera func setupCamera() { captureSession = AVCaptureSession() captureSession.sessionPreset = .medium guard let backCamera = AVCaptureDevice.default(for: AVMediaType.video) else { print("Unable to access back camera!") return } let input: AVCaptureDeviceInput do { input = try AVCaptureDeviceInput(device: backCamera) //Step 9 stillImageOutput = AVCapturePhotoOutput() if captureSession.canAddInput(input) && captureSession.canAddOutput(stillImageOutput) { captureSession.addInput(input) captureSession.addOutput(stillImageOutput) setupLivePreview() } } catch let error { print("Error Unable to initialize back camera: \(error.localizedDescription)") } } func setupLivePreview() { videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession) videoPreviewLayer.videoGravity = .resizeAspectFill videoPreviewLayer.connection?.videoOrientation = .portrait self.view.layer.addSublayer(videoPreviewLayer) //Step12 DispatchQueue.global(qos: .userInitiated).async { [weak self] in self?.captureSession.startRunning() //Step 13 DispatchQueue.main.async { self?.videoPreviewLayer.frame = self?.view.bounds ?? .zero } } } func failed() { let ac = UIAlertController(title: "Scanning not supported", message: "Your device does not support scanning a code from an item. Please use a device with a camera.", preferredStyle: .alert) ac.addAction(UIAlertAction(title: "OK", style: .default)) present(ac, animated: true) captureSession = nil } // MARK: - actions func cameraButtonPressed() { let settings = AVCapturePhotoSettings(format: [AVVideoCodecKey: AVVideoCodecType.jpeg]) stillImageOutput.capturePhoto(with: settings, delegate: self) } } extension CedulaScanningVC: AVCapturePhotoCaptureDelegate { func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) { print("error: \(error)") captureSession.stopRunning() DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in guard let self = self else {return} guard let imageData = photo.fileDataRepresentation() else { print("NO image captured") return } let image = UIImage(data: imageData) self.delegate?.capturedImage(image: image) } } } I don't know what am doing wrong ?

Hi Everyone need your help . I am working on an application where I am capturing photo from the back camera using AVCaptureSession. It is working fine with the devices running iOS17+ but I am facing an error on device iPhone X running iOS 16.7.4 ERROR: error: Optional(Error Domain=AVFoundationErrorDomain Code=-11803 "Cannot Record" UserInfo={NSUnderlyingError=0x283f0b780 {Error Domain=NSOSStatusErrorDomain Code=-16409 "(null)"}, NSLocalizedRecoverySuggestion=Try recording again., AVErrorRecordingFailureDomainKey=3, NSLocalizedDescription=Cannot Record}) Here is my Code: `final class CedulaScanningVC: UIViewController { var captureSession: AVCaptureSession! var stillImageOutput: AVCapturePhotoOutput! var videoPreviewLayer: AVCaptureVideoPreviewLayer! var delegate: ScanCedulaDelegate? override func viewDidLoad() { super.viewDidLoad() } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) } override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) self.captureSession.stopRunning() } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) setupCamera() } // MARK: - Configure Camera func setupCamera() { captureSession = AVCaptureSession() captureSession.sessionPreset = .medium guard let backCamera = AVCaptureDevice.default(for: AVMediaType.video) else { print("Unable to access back camera!") return } let input: AVCaptureDeviceInput do { input = try AVCaptureDeviceInput(device: backCamera) //Step 9 stillImageOutput = AVCapturePhotoOutput() if captureSession.canAddInput(input) && captureSession.canAddOutput(stillImageOutput) { captureSession.addInput(input) captureSession.addOutput(stillImageOutput) setupLivePreview() } } catch let error { print("Error Unable to initialize back camera: \(error.localizedDescription)") } } func setupLivePreview() { videoPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession) videoPreviewLayer.videoGravity = .resizeAspectFill videoPreviewLayer.connection?.videoOrientation = .portrait self.view.layer.addSublayer(videoPreviewLayer) //Step12 DispatchQueue.global(qos: .userInitiated).async { [weak self] in self?.captureSession.startRunning() //Step 13 DispatchQueue.main.async { self?.videoPreviewLayer.frame = self?.view.bounds ?? .zero } } } func failed() { let ac = UIAlertController(title: "Scanning not supported", message: "Your device does not support scanning a code from an item. Please use a device with a camera.", preferredStyle: .alert) ac.addAction(UIAlertAction(title: "OK", style: .default)) present(ac, animated: true) captureSession = nil } // MARK: - actions func cameraButtonPressed() { let settings = AVCapturePhotoSettings(format: [AVVideoCodecKey: AVVideoCodecType.jpeg]) stillImageOutput.capturePhoto(with: settings, delegate: self) } } extension CedulaScanningVC: AVCapturePhotoCaptureDelegate { func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) { print("error: \(error)") captureSession.stopRunning() DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in guard let self = self else {return} guard let imageData = photo.fileDataRepresentation() else { print("NO image captured") return } let image = UIImage(data: imageData) self.delegate?.capturedImage(image: image) } } }` I don't know what am doing wrong ?

We have a Share Extension that fails in Photos on macOS when trying to share a JPEG image for the following reason: From the NSItemProvider we get from the NSExtensionItem.attachments, we try to load the image using loadFileRepresentation(forTypeIdentifier: “public.image”, completionHandler: …). This fails for .jpeg images in the library. There seems to be a mismatch in expected and actual file extension internally. Here is the log: Error copying file type public.image. Error: Error Domain=NSItemProviderErrorDomain Code=-1000 "Cannot load representation of type public.jpeg" UserInfo={NSLocalizedDescription=Cannot load representation of type public.jpeg, NSUnderlyingError=0x1527c1a80 {Error Domain=NSItemProviderErrorDomain Code=-1 "Cannot copy file at URL file:///Users/frank/Library/Containers/com.apple.Photos/Data/tmp/TemporaryItems/ShareKit-Exports/7CCFA760-AAC9-42B0-812D-68F051ED1543/F912E593-2BE5-4E70-86AB-7657A40657E5/IMG_3517.jpg." UserInfo={NSLocalizedDescription=Cannot copy file at URL file:///Users/frank/Library/Containers/com.apple.Photos/Data/tmp/TemporaryItems/ShareKit-Exports/7CCFA760-AAC9-42B0-812D-68F051ED1543/F912E593-2BE5-4E70-86AB-7657A40657E5/IMG_3517.jpg., NSUnderlyingError=0x152789670 {Error Domain=NSItemProviderErrorDomain Code=-1 "Cannot create a temporary file. Error: Undefined error: 0" UserInfo={NSLocalizedDescription=Cannot create a temporary file. Error: Undefined error: 0}}}}}``` In the specified folder, there is an image, however, it’s named IMG_3517.jpeg, not IMG_3517.jpg. This seems to be a bug in Photo’s item provider implementation. If we use loadObject(ofClass: URL.self, completionHandler: …) instead, we get the correct .jpeg URL in the completion handler.

When I: open an existing project create a new PhotoExtensions target run the new target in an iOS simulator (eg iPhone 15, iOS 17.0) Select photos as the app to run Open a photo Tap the ... button at the top right I see: Copy, Duplicate, Hide, etc. But I do not see my new Extension. Is there something else I need to be doing in order to see my new Extension in 'action'?

I'm running this SwiftUI sample app for photos without any modifications except for adding my developer profile, which is necessary to build it. When I tap on the thumbnail to see the photo library (after granting access to my photo library), I see that some of the thumbnails are stuck in a loading state, and when I tap on thumbnails, I only see a low-resolution image (the thumbnail), not the full-resolution image that should load. In the console I can see this error that occurs when tapping on a thumbnail to see the full-resolution image: CachedImageManager requestImage error: The operation couldn’t be completed. (PHPhotosErrorDomain error 3164.) When I make a few modifications necessary to run the app as a native macOS app, all the thumbnails load immediately, and clicking on them reveals the full-resolution images.

From IOS 17. Have an issue when saving video and reading it from PHPickerViewController. Video become into jpeg file Code save video and I saw reason because i changed creationDate. But IOS 16 no bug here doVertifyAccessAblum() { DispatchQueue.global(qos: .background).async { if let url = URL(string: videoURL), let urlData = NSData(contentsOf: url) { let galleryPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]; let filePath="\(galleryPath)/\(url.lastPathComponent).mp4" DispatchQueue.main.async { urlData.write(toFile: filePath, atomically: true) PHPhotoLibrary.shared().performChanges({ let changeRequest = PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: URL(fileURLWithPath: filePath)) changeRequest?.creationDate = Date() }) { success, error in LOGGING.debug("Save video with status: success=\(success) error=\(String(describing: error))") } } } } } }

I am running Sonoma 14.1.1 and having an issue with DNG ProRAW images when choosing to edit. I can choose to edit using the photos app, or edit with Photoshop and in both cases the image once edit is chosen becomes less clear and slightly fuzzy with loss of detail. This happens too when I choose to export the photo from photos as a DNG file and then also try to edit with Photoshop the photos. There is a drastically noticeable difference in quality of the image. This appears to be the way the image is handles in the photos app itself. Even if I save directly from the iPhone to files, it does the same thing once on the Mac. Attached are some screen shot examples, but still clear to see the difference.

We have an iOS/iPadOS app that uses the ImageCaptureCore framework to communicate with PTP cameras. The same app also works with the 'macOS Catalyst' destination. But we like to deprecate the use of macOS Catalyst and then use 'Designed for iPad' destination instead. But when I use this destination then no cameras are provided to the app (ICDeviceBrowser)! :( I've noticed that on iOS devices the 'Settings app' usually shows that our app is allowed to use 'Camera'. But this possibility doesn't appear when the destination is 'Designed for iPad'. To my understanding below entitlements are used for a 'real' macOS app (including Catalyst), but I have added it anyway with: com.apple.security.device.camera com.apple.security.device.usb com.apple.security.personal-information.photos-library all set to YES and also the same privacy-related entries needed for iOS. Any pointers would be appreciated, thanks! :) macOS 14.1.1; Xcode 15.0.1

I'm developing 3D Scanner works on iPad. I'm using AVCapturePhoto and Photogrammetry Session. photoCaptureDelegate is like below: extension PhotoCaptureDelegate: AVCapturePhotoCaptureDelegate { func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) { let fileUrl = CameraViewModel.instance.imageDir!.appendingPathComponent("\(PhotoCaptureDelegate.name)\(id).heic") let img = CIImage(cvPixelBuffer: photo.pixelBuffer!, options: [ .auxiliaryDepth: true, .properties: photo.metadata ]) let depthData = photo.depthData!.converting(toDepthDataType: kCVPixelFormatType_DepthFloat32) let colorSpace = CGColorSpace(name: CGColorSpace.sRGB) let fileData = CIContext().heifRepresentation(of: img, format: .RGBA8, colorSpace: colorSpace!, options: [ .avDepthData: depthData ]) try? fileData!.write(to: fileUrl, options: .atomic) } } But, Photogrammetry session spits warning messages: Sample 0 missing LiDAR point cloud! Sample 1 missing LiDAR point cloud! Sample 2 missing LiDAR point cloud! Sample 3 missing LiDAR point cloud! Sample 4 missing LiDAR point cloud! Sample 5 missing LiDAR point cloud! Sample 6 missing LiDAR point cloud! Sample 7 missing LiDAR point cloud! Sample 8 missing LiDAR point cloud! Sample 9 missing LiDAR point cloud! Sample 10 missing LiDAR point cloud! The session creates a usdz 3d model but scale is not correct. I think the point cloud can help Photogrammetry session to find right scale, but I don't know how to attach point cloud.

I am trying to get an implementation of Object Capture using ObjectCaptureSession in iOS 17. I have been following the example supplied by Apple, but I cannot get the session object to be in the correct state to allow ObjectCaptureSession::beginNewScanPassAfterFlip() to be called. I get the following error when I call session.beginNewScanPassAfterFlip() Can't beginNewScanPassAfterFlip() from state == capturing Must be .paused from .capturing To start with, there is no state of ObjectCaptureSession which is .paused , so is this talking about .isPaused? I have tried using session.pause() and confirm that it is paused using .isPaused but I get the same error as above. I have checked the output of session.state, and confirm it is .capturing I have put print statements in the example, and confirm that before session.beginNewScanPassAfterFlip() is called at line 104 of OnboardingButtonView the state is .capturing This goes against the documentation in this page: https://developer.apple.com/documentation/realitykit/objectcapturesession/beginnewscanpassafterflip() Note, I have also tried pausing the session and calling beginNewScanPassAfterFlip() but this results in the warning: I am hoping for some clarification if there is something I am missing?

I'm developing a 3D scanner works on a iPad(6th gen, 12-inch). Photogrammetry with ObjectCaptureSession was successful, but other trials are not. I've tried Photogrammetry with URL inputs, these are pictures from AVCapturePhoto. It is strange... if metadata is not replaced, photogrammetry would be finished but it seems to be no depthData or gravity info were used. (depth and gravity is separated files). but if metadata is injected, this trial are fails. and this time i tried to Photogrammetry with PhotogrammetrySamples sequence and it also failed. the settings are: camera: back Lidar camera, image format: kCVPicelFormatType_32BGRA(failed with crash) or hevc(just failed) image depth format: kCVPixelFormatType_DisparityFloat32 or kCVPixelFormatType_DepthFloat32 photoSetting: isDepthDataDeliveryEnabled = true, isDepthDataFiltered = false, embeded = true I wonder iPad supports Photogrammetry with PhotogrammetrySamples I've already tested some sample codes provided by apple: https://developer.apple.com/documentation/realitykit/creating_a_photogrammetry_command-line_app https://developer.apple.com/documentation/avfoundation/additional_data_capture/capturing_depth_using_the_lidar_camera https://developer.apple.com/documentation/realitykit/taking_pictures_for_3d_object_capture What should I do to make Photogrammetry successful?

guard let rawfilter = CoreImage.CIRAWFilter(imageData: data, identifierHint: nil) else { return } guard let ciImage = rawfilter.outputImage else { return } let width = Int(ciImage.extent.width) let height = Int(ciImage.extent.height) let rect = CGRect(x: 0, y: 0, width: width, height: height) let context = CIContext() guard let cgImage = context.createCGImage(ciImage, from: rect, format: .RGBA16, colorSpace: CGColorSpaceCreateDeviceRGB()) else { return } print("cgImage prepared") guard let dataProvider = cgImage.dataProvider else { return } let rgbaData = CFDataCreateMutableCopy(kCFAllocatorDefault, 0, dataProvider.data) In iOS 16 this process is much faster than the same process in iOS 17 Is there a method to boost up the decoding speed?

Hi! I am creating a document based app and I am wondering how can I save images in my model and integrate them in the document file. "Image" does not conform to "Persistence model" and I am sure that "Data" will be saved in the document file. Any clue on how can I do it? Many thanks.