Proper way of Encoding image as base64String - ios

Question

Currently, I am trying to send image to backend to upload an image in my project. I have seen all possible answer on stack overflow and elsewhere but can not successfully send the data to backend . Even if I send,due to some problem(most probably due to white spaces as I feel), image decoded in backend side is not being in proper format.
Code to encode -
let imageData1 : NSData = UIImageJPEGRepresentation(slctdImage, 0.1)!
let base64StringNew1 = imageData1.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
Now the intresting part -
When I decode that using SWIFT code locally, I get the image and I am being able to display it in an image View. But same string when I convert in any online bse64 converter, I don't get the result .
code used for decoding -
let decodedData = NSData(base64EncodedString:base64StringNew1, options: NSDataBase64DecodingOptions.IgnoreUnknownCharacters)
So what might be my problem . Can any one please suggest the correct way to upload images to backend using base64String?

Answer 1

Try with this
func encodeImage(dataImage:UIImage) -> String{
let imageData = UIImagePNGRepresentation(dataImage)
return imageData!.base64EncodedStringWithOptions([])
}
Checked in http://codebeautify.org/base64-to-image-converter and works

Answer 2

Below code for image encoding.
let image: UIImage = imgProfilePic.image!
let size = CGSizeApplyAffineTransform(image.size, CGAffineTransformMakeScale(0.3, 0.3))
let hasAlpha = false
let scale: CGFloat = 0.0 // Automatically use scale factor of main screen
UIGraphicsBeginImageContextWithOptions(size, !hasAlpha, scale)
image.drawInRect(CGRect(origin: CGPointZero, size: size))
let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
var imageData = UIImageJPEGRepresentation(scaledImage, 0.9)
var base64String = imageData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0)) // encode the image
var cd = CoreDataUser(pstrContext: "this")
var params = "strUsername=" + cd.getUsername()
params = params + "&strPassword=" + cd.getPassword()
params = params + "&blbProfilePic=" + base64String
PHP code where the base64 string is being decoded and displayed in the browser.
if ($rows) {
foreach ($rows as $row) {
$data = base64_decode($row["fblbProfilePic"]);
$image = imagecreatefromstring($data);
header('Content-Type: Image/jpeg');
imagejpeg($image);
//file_put_contents("test.jpg", $data);
//var_dump($data);
//echo base64_decode($row["fblbPicture"]);
/ /echo '<img src="data:image/jpg;base64,' . $row["fblbPicture"] . '" />';
}