Getting CIImage from UIImage (Swift)

Question

Trying to obtain CIImage from UIImage in order to use it for CIFilter, but getting the following exception at the last line: ``` Execution was interrupted, reason: EXC_BREAKPOINT (code=EXC_I386_BPT, subcode=0x0) ``` What am I doing wrong? ``` import UIKit UIGraphicsBeginImageContextWithOptions(CGSizeMake(100,100), false, 0) let con:CGContextRef = UIGraphicsGetCurrentContext() CGContextAddEllipseInRect(con, CGRectMake(0,0,100,100)) CGContextSetFillColorWithColor(con, UIColor.blueColor().CGColor) CGContextFillPath(con) let im:UIImage = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() let ciimage = CIImage(image: im) // <- Exception here ``` UPDATE: Following the advice not to instantiate CIImage as a variable I reworked my initial code snippet to work in a playground: ``` UIGraphicsBeginImageContextWithOptions(CGSizeMake(100,100), false, 0) let con:CGContextRef = UIGraphicsGetCurrentContext() CGContextAddEllipseInRect(con, CGRectMake(0,0,100,100)) CGContextSetFill…

Accepted Answer

If you are trying to work with filters, I worked around this playground bug:

```
let pic = UIImage(named: "crumpled.jpg")
let filter = CIFilter(name: "CISepiaTone")
filter.setValue(CIImage(image: pic), forKey: kCIInputImageKey)
filter.setValue(0.8, forKey: kCIInputIntensityKey)
let ctx = CIContext(options:nil)
let cgImage = ctx.createCGImage(filter.outputImage, fromRect:filter.outputImage.extent())
```

Getting CIImage from UIImage (Swift)

Solution

Problem