Applying Filter To Images: iOS

<p>When we enter the realm of CoreImage we have to deal with&nbsp;<strong>CI</strong>&nbsp;objects. It can be CIImage, CIFitler or something else.</p> <p>It will be better to take a step back and understand how CoreImage applies &ldquo;Filter&rdquo; on Image. If you are wondering if your app will get a performance hit due to the use of filters then you need not worry. The Core Image uses&nbsp;<strong>GPU&nbsp;</strong>for<strong>&nbsp;</strong>processing images. (FYI GPUs in general are way faster than CPUs.)</p> <h2>Three Cs of CoreImage</h2> <ol> <li><strong>CIContext</strong><br /> This is responsible for doing image analysis as well as rendering image processing results. Creating CIContext is a heavy operation hence it&rsquo;s recommended to reuse existing ones instead of creating new ones.</li> </ol> <p><a href="https://rajeshbudhiraja5.medium.com/applying-colour-filter-to-images-ios-9b71dc62f564"><strong>Click Here</strong></a></p>