CODEWITHSUNDEEP
iphoneiosimage-processingcore-image
Gerardo
Gerardo

Reputation: 5830

IOS 5: Image Filters

i'm searching about image filters using ios5 sdk but i have two questions:

  1. For Mac Os X seems to be a lot of filters that are not available in IOS SDK. Is it possible to implement them or have they already been implemented?

  2. Is there an open-source library with filters like Instragram uses?

Thanks!

Upvotes: 0

Views: 4708

Answers (3)

Jeshua Lacock
Jeshua Lacock

Reputation: 6688

  1. You can create your own custom CoreImage filters by implementing your own kernel. The kernel will be applied using CoreImage's hardware acceleration, see: Creating Custom Filters

  2. There are a number of open-source image libraries. We use ImageMagick in some of our iOS apps. A iOS library is even available for download.

Upvotes: 0

AymanMelhem
AymanMelhem

Reputation: 9

you can use this open source library based on c/c++ , and this is the library link

Upvotes: 0

Brad Larson
Brad Larson

Reputation: 170317

Core Image on iOS lacks many of the filters that are present on the Mac, such as blurs and other more complex operations. You also cannot write custom filters in Core Image as of iOS 5.1.

My newer GPUImage framework lets you write custom filters, and it has many of the ones missing from Core Image on iOS, such as unsharp masking and edge detection. It's also much faster than Core Image in most cases. I built this framework specifically to address the current shortcomings of Core Image on iOS.

Upvotes: 5

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