I am using VNDetectRectanglesRequest to detect rectangular images on a page, and crop them. Detection is quite accurate, but in most cases, the images aren't cropped clean. They have a thin white border around them, as old-fashioned photo prints used to have. Any suggestions? (I get much better cropping with OpenCV, but would like to use Vision if I can improve the cropping results.)

Select 15-20 or more images in iOS Photos app > Export > Save to Files > select Dropbox or Google Drive. Expected behavior is that the selected files should be saved in the selected location. This used to work fine until recently, even for much larger batches. Lately (in iOS 13.x) I either see fewer photos being saved, or duplicates/triplicates, even more copies of a few photos saved. Not sure if the problem is in iOS 13.x, share extensions or in Dropbox and other cloud storage apps’ integration with iOS share extensions sheet.Have tried with iPhone 8 and iPhone 6s using the latest public version of iOS, Dropbox and Google Drive. Haven't checked for other third-party cloud storage services.Please see if you can reproduce this? Would appreciate any ideas on how to resolve this issue.

When I enable resizing of app window in our macOS app, (new?) users get a crash at launch that I can't reproduce. On removing this code, the crashes stop. Symbolicated report below (crashed thread only). Any help appreciated: Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Application Specific Information: ** Terminating app due to uncaught exception'NSGenericException', reason: 'The window has been marked as needing another Layout Window pass, but it has already had more Layout Window passes than there are views in the window.' terminating with uncaught exception of type NSException abort() called Application Specific Backtrace 1: 0 CoreFoundation 0x00007fff35ab1727 __exceptionPreprocess + 250 1 libobjc.A.dylib 0x00007fff6ea17a9e objc_exception_throw + 48 2 CoreFoundation 0x00007fff35ab1585 +[NSException raise:format:] + 181 3 AppKit 0x00007fff32ce198b -[NSWindow(NSDisplayCycle) _postWindowNeedsLayoutUnlessPostingDisabled] + 1577 4 AppKit 0x00007fff32ce1307 -[NSWindow(NSConstraintBasedLayout) _setViewsNeedLayout:] + 49 5 AppKit 0x00007fff32cb6a5b[NSView setNeedsLayout:] + 660 6 UIFoundation 0x00007fff66b3305a -[_NSCollectionViewCore setNeedsLayout] + 53 7 UIFoundation 0x00007fff66b32a9a -[_NSCollectionViewCore _invalidateLayoutWithContext:] + 3473 8 UIFoundation 0x00007fff66b31ce5 -[NSCollectionViewLayout invalidateLayoutWithContext:] + 79 9 UIFoundation 0x00007fff66b31ae7[NSCollectionViewFlowLayout invalidateLayoutWithContext:] + 1901 10 UIFoundation 0x00007fff66b31367 -[NSCollectionViewLayout invalidateLayout] + 129 11 APTX 0x000000010f6062d3 HomeViewController.configurePhotosCollectionViewAfterResize() (in APTX) (compiler-generated:0) 12 APTX 0x000000010f6487b5 HomeViewController.windowDidResize(_:) (in APTX) (compiler-generated:0) 13 APTX 0x000000010f6489fd @objc HomeViewController.windowDidResize(_:) (in APTX) + 109 14 CoreFoundation 0x00007fff35a2b259 __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12 .... Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fff6fcff33a __pthread_kill + 10 1 libsystem_pthread.dylib 0x00007fff6fdbfe60 pthread_kill + 430 2 libsystem_c.dylib 0x00007fff6fc86808 abort + 120 3 libc++abi.dylib 0x00007fff6ceed458 abort_message + 231 4 libc++abi.dylib 0x00007fff6cede8bf demangling_terminate_handler() + 262 5 libobjc.A.dylib 0x00007fff6ea19a57 _objc_terminate() + 96 6 libc++abi.dylib 0x00007fff6ceec887 std::__terminate(void (*)()) + 8 7 libc++abi.dylib 0x00007fff6ceef387 __cxa_rethrow + 99 8 libobjc.A.dylib 0x00007fff6ea17e1c objc_exception_rethrow 37 9 com.apple.AppKit 0x00007fff32d79153 __NSWindowGetDisplayCycleObserverForLayout_block_invoke + 577 10 com.apple.AppKit 0x00007fff32d781f2 NSDisplayCycleObserverInvoke + 155 11 com.apple.AppKit 0x00007fff32d77d7c NSDisplayCycleFlush + 937 12 com.apple.QuartzCore 0x00007fff4153ce40 CA::Transaction::run_commit_handlers(CATransactionPhase) + 106 13 com.apple.QuartzCore 0x00007fff4153bb52 CA::Transaction::commit() + 230 14 com.apple.AppKit 0x00007fff32fec726 -[NSMoveHelper _doAnimation] + 64 15 com.apple.AppKit 0x00007fff32feb620[NSMoveHelper(NSSheets) _moveParent:andOpenSheet:] + 1448 16 com.apple.AppKit 0x00007fff32feb052 -[NSWindow(NSSheets) _orderFrontRelativeToWindow:] + 164 17 com.apple.AppKit 0x00007fff32df3bb2 -[NSWindow _reallyDoOrderWindowAboveOrBelow:relativeTo:findKey:forCounter:force:isModal:] 2217 18 com.apple.AppKit 0x00007fff32df2fb2 -[NSWindow _reallyDoOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 135 19 com.apple.AppKit 0x00007fff32df1f3e -[NSWindow _doOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 293 20 com.apple.AppKit 0x00007fff32f945a9 -[NSApplication _orderFrontModalWindow:relativeToWindow:] + 232 21 com.apple.AppKit 0x00007fff32fea89a -[NSWindow _beginWindowBlockingModalSessionForSheet:service:completionHandler:isCritical:] 585 22 com.apple.AppKit 0x00007fff33047fd0 __54-[NSAlert beginSheetModalForWindow:completionHandler:]_block_invoke + 281 23 com.apple.AppKit 0x00007fff33044755 -[NSAlert beginSheetModalForWindow:completionHandler:] + 98 24 com.ail.aptxx 0x000000010f62eddf specialized OtherHelper.showAlert(window:title:message:isInformational:arrButtonTitles:responseHandler:) (in APTX) (compiler-generated:0) 25 com.ail.aptxx 0x000000010f60fc48 HomeViewController.checkForPhotosAppOpened() (in APTX) (HomeViewController.swift:1408) 26 com.ail.aptxx 0x000000010f603fae HomeViewController.viewWillAppear() (in APTX) (HomeViewController.swift:117) 27 com.ail.aptxx 0x000000010f604428 @objc HomeViewController.viewWillAppear() (in APTX) (compiler-generated:0)

My macOS app offers free download and trial, but requires an in-app purchase to unlock full functionality. Currently, only 2-3% of the downloads result in purchase. Presumably the rest either delete the app or keep it but don't use it. I'd like to target such people - maybe after a week or so after the initial download - with a special offer like a small discount on the purchase price. Any suggestions on how to do this?

We have an app in the iOS App Store with a one-time up-front pricing. A company wants to license this app and offer it free or at a discount to their customers. Ideally they want a white label licensing arrangement i.e. our app with their branding. How to do this, while retaining control of our source code? We want to be able to offer a flat fee arrangement (e.g. $X per quarter), or a flat discounted rate per download, or tiered pricing (e.g. first X downloads / month: $Y, above this $Z) Both parties should be able to verify download volumes. If we clone our app (with their branding) and either put it in the App Store as our app or give them the build and they put it in the App Store, can we restrict its visibility or availability to their users? If not, it will cannibalize our current app. Apple's Custom Apps / Specific Organizations program may be an option but it says that "this option is only available before your app has been approved." Thank you in advance for guidance and creative solutions.