UIImageJPEGRepresentation和垃圾图像

Question

经过尝试，我能够上传一张从相机拍摄的图像到我的网络服务器上。

但我不明白的是，为什么图像质量很差，分辨率低，颜色很少。有没有办法获得更好的质量？

下面是我的代码：

NSURL *url = [NSURL URLWithString:@"http://localhost"];

    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];

    NSData *imageData = UIImageJPEGRepresentation(image, 0.9);

    NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"/upload.php" parameters:nil constructingBodyWithBlock: ^(id <AFMultipartFormData>formData) {
        [formData appendPartWithFileData:imageData name:@"file" fileName:@"temp.jpeg" mimeType:@"image/jpeg"];
    }];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

    [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
        NSLog(@"Sent %lld of %lld bytes", totalBytesWritten, totalBytesExpectedToWrite);
    }];

    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
    {
        NSString *response = [operation responseString];
        NSLog(@"response: [%@]",response);
        //[MBProgressHUD hideHUDForView:self.view animated:YES];
    }
    failure:^(AFHTTPRequestOperation *operation, NSError *error)
    {
        //[MBProgressHUD hideHUDForView:self.view animated:YES];
        if([operation.response statusCode] == 403)
        {
            NSLog(@"Upload Failed");
            return;
        }
        NSLog(@"error: %@", [operation error]);

    }];


    [operation start];

谢谢Regis

Answer 1

对不起，伙计们，为了在我的use服务器上工作，我使用了realVnc。RealVnc设置为低分辨率！我确实更改了设置以获得更好的分辨率，现在问题解决了！