如何从iPhone中的图像中消除红眼？ [英] How to remove red eye from image in iPhone?

问题描述

我想删除红眼效果表单照片但是没有任何样本可以帮助我使用演示代码或代码片段吗？

I want to remove red eye effect form photo but not get any sample can any one help me with working demo code or code snippet?

谢谢。

推荐答案

使用以下类别 UIImage ：

@interface UIImage (Utitlities)
  -(UIImage*)redEyeCorrection;
@end

---

---

@implementation UIImage (Utitlities)
  -(UIImage*)redEyeCorrection
  {
    CIImage *ciImage = [[CIImage alloc] initWithCGImage:self.CGImage];

    // Get the filters and apply them to the image
    NSArray* filters = [ciImage autoAdjustmentFiltersWithOptions:[NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:kCIImageAutoAdjustEnhance]];
    for (CIFilter* filter in filters)
    {
      [filter setValue:ciImage forKey:kCIInputImageKey];
      ciImage = filter.outputImage;
    }

    // Create the corrected image
    CIContext* ctx = [CIContext contextWithOptions:nil];
    CGImageRef cgImage = [ctx createCGImage:ciImage fromRect:[ciImage extent]];
    UIImage* final = [UIImage imageWithCGImage:cgImage];
    CGImageRelease(cgImage);
    return final;
  }
@end

用法：示例下面给出的代码

Usage: Sample code given below

 UIImage *redEyeImage = [UIImage imageNamed:@"redEye.jpg"];

if (redEyeImage) {
    UIImage *newRemovedRedEyeImage = [redEyeImage redEyeCorrection];
    if (newRemovedRedEyeImage) {
        imgView.image = newRemovedRedEyeImage;
    }
}

参考 NYXImagesKit UIImage Enhancing 链接

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