gpuimage

I'm using GPUImage framework implementation GPUImageGaussianSelectiveBlurFilter effect. Now GPUImageGaussianSelectiveBlurFilter effect has been achieved,but there is too much memory consumption.I know through the forceProcessingAtSize method can reduce some memory consumption, but reduce memory consumption too little. If the processImage method is not called, the memory consumption will reduce a lot, so how to use another method to replace it? How to reduce memory consumption? #import "ViewController.h" #import "GPUImage.h" @interface ViewController () { UIImageView *captureImageView;

I would like to switch between two filter chains as shown in case 1 and case 2 with the code below. When I initially select either cases, the output appears correct. However, when I switch to another the filter chain, the output flickers between current and prior filter chain. What is the recommended way to switch filter chains? -(void) updateFilter:(NSInteger) style { switch (style) { case 1: [kuwahara setRadius:5]; [videoCamera addTarget:kuwahara]; [kuwahara addTarget:grayscale]; [grayscale addTarget:filteredVideoView]; break; case 2: [videoCamera addTarget:grayscale]; [blur setBlurSize:3];

I'm trying to use GPUImage and CIFilter to map this filter. Please note, I need help mapping the color (Reds) specific (note: NOT Master, just Reds) photoshop element to iOS. Does anyone know how to manipulate a CIFilter or GPUImage class to get the photoshop effect below in iOS? You could use GPUImage with the lookup filter: GPUImageLookupFilter: Uses an RGB color lookup image to remap the colors in an image. First, use your favourite photo editing application to apply a filter to lookup.png from GPUImage/framework/Resources. For this to work properly each pixel color must not depend on other

First of all I would like congratulate Brad for the amazing work on GPUImage. I'm trying to apply a rotation to a given video file and obtain an mpeg4 (AVFileTypeMPEG4) file as output. When doing this I obtain the following message : * -[AVAssetWriterInput appendSampleBuffer:] Input buffer must be in an uncompressed format when outputSettings is not nil This problem occurs when using the following init method of GPUImageMovieWriter with filetype set to AVFileTypeMPEG4 : - (id)initWithMovieURL:(NSURL *)newMovieURL size:(CGSize)newSize fileType:(NSString *)newFileType outputSettings:

I need a reliable, efficient method to create iOS 7 blur effect. I've implemented Apple's applyBlurWithRadius from WWDC code (UIImage+ImageEffects) . It is pretty flexible actually, it allows to change tintColor also which provides to create a darker blur effect like this: But it relies on the Core Graphics and it is decreasing the scrolling performance in a table view. Then I've seen BradLarson's GPUImage library and it's GPUImageiOSBlurFilter method which replicates the iOS 7 effect and it works much faster than the UIImage+ImageEffects , so it seems more usable in my case. But the problem

Hello There I am rotating and applying image filters by GPUImage on vide live stream The task is consuming more time than expected resulting over-heating of iPhone Can anybody help me out in optimising my code Following is my used code: - (void)willOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer{ //return if invalid sample buffer if (!CMSampleBufferIsValid(sampleBuffer)) { return; } //Get CG Image from sample buffer CGImageRef cgImageFromBuffer = [self cgImageFromSampleBuffer:sampleBuffer]; if(!cgImageFromBuffer || (cgImageFromBuffer == NULL)){ return; } //We need rotation to perform