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POsome issue when i try to use two CIFilter
 

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  1. POsome issue when i try to use two CIFilter
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    <p>i want to have a picture black&amp;white the most clear as possible, for an app iPad et iPhone.</p> <p>i did many thing for that :</p> <p>1 - i take my picture with iPad's or iPhone's camera.</p> <p>2 - i apply my first filter == CIColorMonochrome == and i display to be sure if that work. my first filter work well.</p> <p>3 - i recover the result of my last filter and i use it to apply my new filter == CINoiseReduction == and i display it to be sure if that work too ! but this time it display nothing so i don't know why.</p> <pre><code> //CIColorMonochrome CIFilter * monochromeFilter; monochromeFilter = [CIFilter filterWithName:@"CIColorMonochrome"]; [monochromeFilter setValue:beginImage forKey:@"inputImage"]; //Red Green Blue Alpha [monochromeFilter setValue:[CIColor colorWithString:@"255 255 255 1.0"] forKey:@"inputColor"]; [monochromeFilter setValue:[NSNumber numberWithFloat:1] forKey:@"inputIntensity"]; CIImage* monochromeImage = [monochromeFilter valueForKey:@"outputImage"]; CIImage* outputImage = monochromeImage; //---===--- CIFilter* noiseReductionFilter = [CIFilter filterWithName:@"CINoiseReduction"]; //[noiseReductionFilter setDefaults]; [noiseReductionFilter setValue:outputImage forKey:@"inputImage"]; [noiseReductionFilter setValue:[NSNumber numberWithFloat:0.2] forKey:@"inputNoiseLevel"]; [noiseReductionFilter setValue:[NSNumber numberWithFloat:0.40] forKey:@"inputSharpness"]; [noiseReductionFilter retain]; CIImage* noiseReductionImage = [noiseReductionFilter valueForKey:@"outputImage"]; // ---===--- outputImage = noiseReductionImage; CGImageRef cgimg = [context createCGImage:outputImage fromRect:[beginImage extent]]; UIImage* newImg = [UIImage imageWithCGImage:cgimg]; CGImageRelease(cgimg); [imageView removeFromSuperview]; CGRect imageFrame = [imageView frame]; [imageView release]; // [self noiseReduction:newImg]; imageView = [[UIImageView alloc]initWithImage:newImg]; NSLog(@"%@ ===---=== " ,[self noiseReduction:newImg]); if (flag == 0) [imageView setFrame:imageFrame]; NSLog(@"setFrame image"); NSLog(@"%@ ==== ", imageView); [[self view]addSubview:imageView]; </code></pre> <p>cordially</p>
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USEliann
    1. USEliann
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COCIColorMonochrome is Available in Mac OS X v10.4 and later. not in iOS https://developer.apple.com/library/mac/#documentation/graphicsimaging/reference/CoreImageFilterReference/Reference/reference.html
      singulars
      1. POsome issue when i try to use two CIFilter
      1. USBala
    2. CONot true. You can see the available filters via: NSArray *properties = [CIFilter filterNamesInCategory:kCICategoryBuiltIn]; for (NSString *filterName in properties) { CIFilter *theFilter = [CIFilter filterWithName:filterName]; NSString *filterName = [theFilter name]; NSLog(@"%@", filterName); }
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      1. POsome issue when i try to use two CIFilter
      1. USKeller
 

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