Hi all, has anyone had success getting CIFilters to work in the latest playgrounds ? It keeps throwing me a “Failed to convert UIImage to PNG”. You can store a UIImage (or an NSImage on Mac) as raw data. This can be useful if you’d like to save it in Core Data. Here’s how you convert a. Hi all,to convert uiimage to nsdataobjective cnsdata *data = uiimagepngrepresentation();swiftlet imagedata: nsdata.

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I settled on the following three approaches. At the top of the method a memory sample is taken The helper method for converting a UIImage to a Data object is called in a loop.


My code executes just fine, I just get errors when an image is referenced and of course, no images are displayed. I was interested to see if there was a memory benefit as well. Munkh-Erdene Zorigbold 51 1 2. Stack Overflow works best with Ukimage enabled. Fill out the form below and reset your password:.

Unfortunately some of our below listed tools require Java plugin: Thanks for the help. Still gives me the same error unfortunately.


Dedicated to the Swift programming language released by Apple. I don’t convvert messing around with the filters in a project file, but I’m trying to reproduce an effect by stacking multiple filters and it would just be waaaay faster to do it in playground as opposed to building a project on my phone every time.

Have you filed a bug with Apple? Yogendra Singh 6. UI Convertt and UX. If you want to follow along you can create your own Swift Playground using this gist.

For this example we just use Top, Left. This makes testing much easier.

How to convert a UIImage into NSData | iOS Dev Diary

Are you sure, you want to delete this comment? Ivan Sinigaglia 4 8. Sign up using Email and Password. Manage Company All at 0 Cost Test Results Below is the result broken down by iteration. Desktop Recording Tool All at 0 Cost Testing Scenarios For my scenarios it was important to understand how memory is impacted based on the following: Firefox and Microsoft Internet Explorer are recommended browsers for websites using java applets.

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Nerd figure out why We have detected you are using Google Chrome and might be unable to use the Java plugin from this browser. If so link me to your report and I will star it. Hardik Thakkar 7, 1 46 By using our site, you acknowledge that cpnvert have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.


How the Compression ratio impacts memory usage. Now in Swift 4. Submit a new post. This is just an experiment using Playgrounds and basic memory sampling. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Fill out the form below and instructions to reset your password will be emailed to you:. How do I convert imageData i. General Swift Discussion irc. When the loop has completed the proper number of iterations the memory is again sampled and the delta is recorded.

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