Top "Core-image" questions

Core Image is a set of components for near real-time, pixel-accurate image and video processing for cocoa.

Creating a blurring overlay view

In the Music app of the new iOS, we can see an album cover behind a view that blurs it. …

ios objective-c graphics filtering core-image
How to Convert UIImage to CIImage and vice versa

I'm trying to get CIImage from ImageView that display on the screen. UIImage *image = myImageView.image; convert image UIImage to …

cocoa-touch ios5 uiimage core-graphics core-image
Getting a CGImage from CIImage

I have a UIImage which is loaded from a CIImage with: tempImage = [UIImage imageWithCIImage:ciImage]; The problem is I need …

ios core-graphics core-image cgimage ciimage
What is the best Core Image filter to produce black and white effects?

I am using Core Image and would like to produce a black and white effect on the chosen image. Ideally …

cocoa ios5 core-image
Make an UIImage from a CMSampleBuffer

This is not the same as the countless questions about converting a CMSampleBuffer to a UIImage. I'm simply wondering why …

ios core-image quartz-core
How can I generate a barcode from a string in Swift?

I am a new iOS developer. I was wondering how can I generate a barcode in Swift. I have the …

ios swift barcode core-image
Are the Core Image filters in iOS 5.0 fast enough for realtime video processing?

Now that Apple has ported the Core Image framework over to iOS 5.0, I'm wondering: is Core Image is fast enough …

iphone ios performance core-image
Correct crop of CIGaussianBlur

As I noticed when CIGaussianBlur is applied to image, image's corners gets blurred so that it looks like being smaller …

objective-c macos core-image
Tinting a grayscale NSImage (or CIImage)

I have a grayscale image which I want to use for drawing Cocoa controls. The image has various levels of …

objective-c cocoa core-image
Having trouble creating UIImage from CIImage in iOS5

I'm using the AVFoundation framework. In my sample buffer delegate I have the following code: -(void)captureOutput:(AVCaptureOutput *)captureOutput …

iphone ios avfoundation ios5 core-image