如何更改结果以打印Objective C中的RGB像素值

// 假设有一个名为image的UIImage对象
CGImageRef imageRef = [image CGImage];
CGDataProviderRef provider = CGImageGetDataProvider(imageRef);
CFDataRef pixelData = CGDataProviderCopyData(provider);
const UInt8* data = CFDataGetBytePtr(pixelData);

size_t bytesPerRow = CGImageGetBytesPerRow(imageRef);
size_t width = CGImageGetWidth(imageRef);
size_t height = CGImageGetHeight(imageRef);

for (size_t y = 0; y < height; y++) {
    for (size_t x = 0; x < width; x++) {
        size_t pixelIndex = bytesPerRow * y + 4 * x;
        UInt8 red = data[pixelIndex];
        UInt8 green = data[pixelIndex + 1];
        UInt8 blue = data[pixelIndex + 2];
        NSLog(@"Pixel at (%zu, %zu): RGB(%u, %u, %u)", x, y, red, green, blue);
    }
}

CFRelease(pixelData);