data.getExtras().get("data") android中低分辨率图像的结果 [英] data.getExtras().get("data") result of low resolution image in android

问题描述

在我的应用程序中，我从相机拍了一张照片，然后我得到那张照片，对同一张照片进行一些图像处理操作，但是当我用 data.getExtras().get("data") 得到这张照片时，图片随附低分辨率不是真正的分辨率.问题的原因是什么?

In my app I take a picture from camera and then I get that picture to do some image processing operations on same picture but when I get this picture with data.getExtras().get("data") , picture come with low resolution not real taken resolution. What can be reason of the problem?

代码就是这样；

    Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
          startActivityForResult(intent , CAMERA_PIC_REQUEST);
    }

    protected void onActivityResult(int requestCode , int resultCode , Intent data )
    {
        if( requestCode != 0)
        { 
            ImageView image = (ImageView)findViewById(R.id.imageView1);
                thumbnail = (Bitmap)data.getExtras().get("data");

推荐答案

Mightier 搞定了.如果不包括额外内容，您只会得到一个小尺寸的图像.来自 Android 文档:

Mightier nailed it. Without including extras you only get a small sized image. From the Android documentation:

public static final String ACTION_IMAGE_CAPTURE从:API 级别 3

public static final String ACTION_IMAGE_CAPTURE Since: API Level 3

可以发送标准 Intent 操作以使相机应用程序捕获图像并将其返回.

Standard Intent action that can be sent to have the camera application capture an image and return it.

调用者可能会传递一个额外的 EXTRA_OUTPUT 来控制这个图像的写入位置.如果 EXTRA_OUTPUT 不存在，则在额外字段中将小尺寸图像作为位图对象返回.这对于只需要小图像的应用程序很有用.如果存在 EXTRA_OUTPUT，则全尺寸图像将写入 EXTRA_OUTPUT 的 Uri 值.

The caller may pass an extra EXTRA_OUTPUT to control where this image will be written. If the EXTRA_OUTPUT is not present, then a small sized image is returned as a Bitmap object in the extra field. This is useful for applications that only need a small image. If the EXTRA_OUTPUT is present, then the full-sized image will be written to the Uri value of EXTRA_OUTPUT.

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