Top "Core-image" questions

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

Does iOS 5 support blur CoreImage fiters?

According to the documentation it should support blurring, note the "Available in iOS 5.0 and later": CIFilter Class Reference But according …

cocoa-touch ios5 core-image
iOS 7 Core Image QR Code generation too blur

here's my code for generating QRCode image + (UIImage *)generateQRCodeWithString:(NSString *)string { NSData *stringData = [string dataUsingEncoding:NSUTF8StringEncoding]; CIFilter *filter = [CIFilter …

ios uikit core-image
Applying a CIFilter to a CALayer

CI Filters are now available in iOS 5, and I'm trying to apply one to a CALayer, the way you'd do …

ios cocoa-touch calayer core-image
Using GPUImage to Recreate iOS 7 Glass Effect

I am trying to use the iOS 7 style glass effect in my glass by applying image effects to a screenshot …

ios image-processing mkmapview core-image gpuimage
Create CVPixelBufferRef from CIImage for Writing to File

I'm writing a custom Movie Recording app and have implemented AVAssetWriter and AVAssetWriterInputPixelBufferAdaptor for writing frames to a file. In …

objective-c ios core-image avassetwriter core-video
How to create simple custom filter for iOS using Core Image Framework?

I want to use in my app an custom filter. Now I know that I need to use Core Image …

ios image-processing core-image
Using CoreImage to filter an image results in image rotation

Thanks for reading. I'm trying to use CoreImage in iOS 5 to alter the appearance of an image. The problem is …

objective-c ios5 core-image
Remove background from Image & take only Image part for save in iOS

This is what i need to achieve: Take image from camera or Gallery Remove background from image & save it …

ios opencv uiimage core-image chromakey
Core Image CIColorControls brightness filter creates wrong effect. How do I change my image's luminance?

I'm creating a color picker for iOS. I would like to enable the user to select the brightness (luminance) and …

ios ios5 graphics core-graphics core-image
Applying filters on a video file

I want to apply filters (effects) on a video file while the video is playing. I'm currently using @BradLarson 's (…

ios objective-c core-image gpuimage