Iphone cv:：mat到UIImage转换未恢复精确图像

我正在使用此函数将cv:：mat转换为UIImage

-(UIImage *)UIImageFromCVMat:(cv::Mat)cvMat
{
    NSData *data = [NSData dataWithBytes:cvMat.data length:cvMat.elemSize()*cvMat.total()];
    CGColorSpaceRef colorSpace;

    if (cvMat.elemSize() == 1) {
        colorSpace = CGColorSpaceCreateDeviceGray();
    } else {
        colorSpace = CGColorSpaceCreateDeviceRGB();
    }

    CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)data);

    // Creating CGImage from cv::Mat
    CGImageRef imageRef = CGImageCreate(cvMat.cols,                                 //width
                                        cvMat.rows,                                 //height
                                        8,                                          //bits per component
                                        8 * cvMat.elemSize(),                       //bits per pixel
                                        cvMat.step[0],                            //bytesPerRow
                                        colorSpace,                                 //colorspace
                                        kCGImageAlphaNone|kCGBitmapByteOrderDefault,// bitmap info
                                        provider,                                   //CGDataProviderRef
                                        NULL,                                       //decode
                                        false,                                      //should interpolate
                                        kCGRenderingIntentDefault                   //intent
                                        );


    // Getting UIImage from CGImage
    UIImage *finalImage = [UIImage imageWithCGImage:imageRef];
    CGImageRelease(imageRef);
    CGDataProviderRelease(provider);
    CGColorSpaceRelease(colorSpace);

    return finalImage;
}

恢复图像的颜色与原始图像不匹配。我从CvVideoCamera代表处获得简历：Mat

- (void)processImage:(Mat&)image
{
    UIImage* img = [self UIImageFromCVMat:image]
}

---

此代码有什么问题。

它可能与openCV（bgr）的默认颜色空间顺序有关。我认为您应该检查CGImageCreate构造函数以找出根本原因。

这是我的工作代码

- (UIImage *)UIImageFromMat:(cv::Mat)image 
{
    cvtColor(image, image, CV_BGR2RGB);
    NSData *data = [NSData dataWithBytes:image.data length:image.elemSize()*image.total()];

    CGColorSpaceRef colorSpace;

    if (image.elemSize() == 1) {
        colorSpace = CGColorSpaceCreateDeviceGray();
    } else {
        colorSpace = CGColorSpaceCreateDeviceRGB();
    }

    CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)data);//CGDataProviderCreateWithCFData((__bridge CFDataRef)data);

    // Creating CGImage from cv::Mat
    CGImageRef imageRef = CGImageCreate(image.cols,                                 //width
                                        image.rows,                                 //height
                                        8,                                          //bits per component
                                        8 * image.elemSize(),                       //bits per pixel
                                        image.step.p[0],                            //bytesPerRow
                                        colorSpace,                                 //colorspace
                                        kCGImageAlphaNone|kCGBitmapByteOrderDefault,// bitmap info
                                        provider,                                   //CGDataProviderRef
                                        NULL,                                       //decode
                                        false,                                      //should interpolate
                                        kCGRenderingIntentDefault                   //intent
                                        );


    // Getting UIImage from CGImage
    UIImage *finalImage = [UIImage imageWithCGImage:imageRef];
    //[self.imgView setImage:finalImage];
    CGImageRelease(imageRef);
    CGDataProviderRelease(provider);
    CGColorSpaceRelease(colorSpace);

    return finalImage;

}

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感谢fuatcoskun的完美回答您是否解决了此问题？如果你愿意，你能分享你的代码吗；酷！为我工作。是否有机会为其他设备（iPad、iPhone 6Plus）使用不同的冷代码（CV_BGR2RGB）？有没有办法通过编程检测设备的颜色空间？