Objective c 红眼矫正

为了增加红眼矫正效果，我点击了以下链接：

通过吊舱安装在库上方。在我的类中添加了以下代码

UIImage *redEyeImage = [UIImage imageNamed:@"Userimage"];

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

但我没有得到所需的输出。我有什么遗漏吗？或者是否有其他库来实现这个概念。请建议

---

谢谢

您可以在两条if语句之后的行上设置断点，然后运行应用程序，查看它们是否被命中（可能

redeyimage

不存在，或者

newremovedeyimage

不存在）

另一种简单的检查方法是：

UIImage *redEyeImage;
UIImage *newRemovedRedEyeImage;

redEyeImage = [UIImage imageNamed:@"Userimage"];

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

NSLog(@"redEyeImage: %@", (redEyeImage != nil ? @"exists" : @"nil"));
NSLog(@"newRemovedRedEyeImage: %@", (newRemovedRedEyeImage != nil ? @"exists" : @"nil"));

---

然后运行此程序，查看底部的两个日志打印内容。

您可以在两个if语句之后的行上设置断点，然后运行应用程序，查看它们是否被击中（可能

redeyimage

不存在或

newremovedeyimage

不存在）

另一种简单的检查方法是：

UIImage *redEyeImage;
UIImage *newRemovedRedEyeImage;

redEyeImage = [UIImage imageNamed:@"Userimage"];

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

NSLog(@"redEyeImage: %@", (redEyeImage != nil ? @"exists" : @"nil"));
NSLog(@"newRemovedRedEyeImage: %@", (newRemovedRedEyeImage != nil ? @"exists" : @"nil"));

---

然后运行此命令，查看底部的两个日志打印的内容。

最后，我用以下代码解决了此问题：

UIImage *img = [UIImage imageNamed:@"images.png"];
CIImage *image = [[CIImage alloc]initWithImage:img];
NSLog(@"after ciimage: %@", kCIImageAutoAdjustEnhance);
NSDictionary *options = [NSDictionary dictionaryWithObject:@"NO" forKey:kCIImageAutoAdjustEnhance];
NSLog(@"options: %@", options);
NSArray *adjustments = [image autoAdjustmentFiltersWithOptions:options];
NSLog(@"adjustments: %@  ", adjustments);

for (CIFilter * filter in adjustments)
{
    [filter setValue:image forKey:kCIInputImageKey];
    image = filter.outputImage;
}
CIContext *context = [CIContext contextWithOptions:nil];
CGImageRef cgImage = [context createCGImage:image fromRect:image.extent];
UIImage *enhancedImage = [[UIImage alloc] initWithCGImage:cgImage];
CGImageRelease(cgImage);
self.img.image = enhancedImage;

---

最后，我用以下代码解决了这个问题：

UIImage *img = [UIImage imageNamed:@"images.png"];
CIImage *image = [[CIImage alloc]initWithImage:img];
NSLog(@"after ciimage: %@", kCIImageAutoAdjustEnhance);
NSDictionary *options = [NSDictionary dictionaryWithObject:@"NO" forKey:kCIImageAutoAdjustEnhance];
NSLog(@"options: %@", options);
NSArray *adjustments = [image autoAdjustmentFiltersWithOptions:options];
NSLog(@"adjustments: %@  ", adjustments);

for (CIFilter * filter in adjustments)
{
    [filter setValue:image forKey:kCIInputImageKey];
    image = filter.outputImage;
}
CIContext *context = [CIContext contextWithOptions:nil];
CGImageRef cgImage = [context createCGImage:image fromRect:image.extent];
UIImage *enhancedImage = [[UIImage alloc] initWithCGImage:cgImage];
CGImageRelease(cgImage);
self.img.image = enhancedImage;

---

你确定键入的图像名称正确吗？你能告诉我if语句是否执行了吗？是的，if语句正在执行。但结果保持不变。你确定键入的图像名称正确吗？你能告诉我if语句是否执行了吗？是的，if语句正在执行。但结果仍然是一样的相同的