how to compress image to width and height?

Question

I have many images. and I want to compress it.

If the image is (300,500)

I want to compress it to (30,50) to (90,150) to (12,60)

how to compress it?

Answer 1

Hello,

On Android, if you need to resize an image, you need to convert it into a bitmap.

Please refer to the following resizer tool code. You can use it directly to resize the image.

public static byte[] ResizeImageOnAndroid (byte[] imageData, float width, float height)

{

	// Step 1. Load the bitmap

	Bitmap originalImage = BitmapFactory.DecodeByteArray (imageData, 0, imageData.Length);

      // Sets the resized size.

	Bitmap resizedImage = Bitmap.CreateScaledBitmap(originalImage, (int)width, (int)height, false);

	using (MemoryStream ms = new MemoryStream())

	{

            // Compress the original image to jpeg format with 100 quality.

		resizedImage.Compress (Bitmap.CompressFormat.Jpeg, 100, ms);

		return ms.ToArray ();

	}

}

Best Regards, Wenyan Zhang

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