Xamarin Forms - reduce byte[] size to target size - image

Question

I have seen a couple of examples, but nothing helped me so far with this issue.
I have an image in byte[] which size must be reduced to under 2 MB. I tried a couple of things, but nothing helped so far.
I used the following code which could be found at many questions like this:
public static byte[] Compress(byte[] data)
{
MemoryStream output = new MemoryStream();
using (DeflateStream dstream = new DeflateStream(output, CompressionLevel.Optimal))
{
dstream.Write(data, 0, data.Length);
}
return output.ToArray();
}
This does reduce the size of the image, but not below 2 MB and I have no idea how to state that here.
Other examples were focused on saving the image on the phone with reduced size, but my image should remain in byte[]. This question thus does not help.
I hope someone can help.

Answer 1

You can try to use nuget Xam.Plugin.Media to set the compression quality to take photos and compress as well.
Please refer to the following code:
private async void cmdCameraPhotograph_Clicked(object sender, EventArgs e)
{
if (CrossMedia.Current.IsTakePhotoSupported)
{
var file = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions
{
Directory = "Photographs",
SaveToAlbum = true,
CompressionQuality = 40,
CustomPhotoSize = 35,
PhotoSize = PhotoSize.MaxWidthHeight,
MaxWidthHeight = 2000,
DefaultCamera = CameraDevice.Rear
}).ConfigureAwait(true);
if (file != null)
{
}
}
else
{
await DisplayAlert("Not Supported", "Your device does not support this feature.", "OK. Understood")
.ConfigureAwait(true);
}
}
You can also get the file from the Gallery
var file = await CrossMedia.Current.PickPhotoAsync(new PickMediaOptions
{
CompressionQuality = 40,
CustomPhotoSize = 35,
PhotoSize = PhotoSize.MaxWidthHeight,
MaxWidthHeight = 2000
}).ConfigureAwait(true);
You can also compress images on different platforms individually.
For more information,you can check thread Compress images.