如何将android.media.Image转换为位图对象? [英] How to convert android.media.Image to bitmap object?

问题描述

在android中，我从此处 https://inducesmile .com/android/android-camera2-api-example-tutorial/此相机教程.但是我现在想遍历像素值，有人知道我该怎么做吗?我需要将其转换为其他东西吗?

In android, I get an Image object from here https://inducesmile.com/android/android-camera2-api-example-tutorial/ this camera tutorial. But I want to now loop through the pixel values, does anyone know how I can do that? Do I need to convert it to something else and how can I do that?

谢谢

推荐答案

如果要循环遍历整个像素，则需要先将其转换为Bitmap对象.现在，由于我在源代码中看到它返回了Image，因此您可以将字节直接转换为位图.

If you want to loop all throughout the pixel then you need to convert it first to Bitmap object. Now since what I see in the source code that it returns an Image, you can directly convert the bytes to bitmap.

    Image image = reader.acquireLatestImage();
    ByteBuffer buffer = image.getPlanes()[0].getBuffer();
    byte[] bytes = new byte[buffer.capacity()];
    buffer.get(bytes);
    Bitmap bitmapImage = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, null);

然后，一旦获得位图对象，就可以遍历所有像素.

Then once you get the bitmap object, you can now iterate through all of the pixels.

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