保存相机preVIEW与叠加图像 [英] Save cameraPreview with overlay image
本文介绍了保存相机preVIEW与叠加图像的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用谷歌的相机preVIEW样品演示。在这里,我有相机preVIEW,并在摄像头preVIEW的叠加图像。
当我拍摄照片时,只有相机preVIEW是保住了,但我需要的叠加图像将超过相机preVIEW也得救了。
这是我的方式保存相机preVIEW的照片,但我需要知道什么是对覆盖展位图像的最佳方式,并将它们保存到一个。
公共无效onPictureTaken(字节[]数据,相机摄像头){ 。字符串photoPath = Environment.getExternalStorageDirectory()getAbsolutePath()+/ miFoto.jpg; 尝试{
FOS的FileOutputStream =新的FileOutputStream(photoPath);
fos.write(数据);
fos.close();
}赶上(IOException异常五){
Toast.makeText(这一点,产品图未保存,Toast.LENGTH_SHORT).show();
返回;
}
Toast.makeText(这一点,产品图保存在:+ photoPath,Toast.LENGTH_SHORT).show(); camera.start preVIEW();
}
解决方案
我终于做到了这种方式:
公共无效onPictureTaken(字节[]数据,相机摄像头){ 位图cameraBitmap = BitmapFactory.de codeByteArray的(数据,0,data.length);
位图cameraScaledBitmap = Bitmap.createScaledBitmap(cameraBitmap,1280,720,真正的);
INT妇女参与发展= cameraScaledBitmap.getWidth();
INT HGT = cameraScaledBitmap.getHeight();
位图newImage = Bitmap.createBitmap(WID,HGT,Bitmap.Config.ARGB_8888);
位图overlayScaledBitmap = Bitmap.createScaledBitmap(overlayBitmap,妇女参与发展,HGT,真正的);
帆布帆布=新的Canvas(newImage);
canvas.drawBitmap(cameraScaledBitmap,0,0,NULL);
canvas.drawBitmap(overlayScaledBitmap,0,0,NULL); 文件storagePath =新的文件(Environment.getExternalStorageDirectory()getAbsolutePath());
storagePath.mkdirs();
串finalName = Long.toString(System.currentTimeMillis的());
文件MYIMAGE =新的文件(storagePath,finalName +.JPG); 。字符串photoPath = Environment.getExternalStorageDirectory()getAbsolutePath()+/+ finalName +.JPG; 尝试{
FOS的FileOutputStream =新的FileOutputStream(MYIMAGE);
newImage.com preSS(Bitmap.Com pressFormat.JPEG,80,FOS);
fos.close();
}赶上(IOException异常五){
Toast.makeText(这一点,产品图未保存,Toast.LENGTH_SHORT).show();
返回;
}
Toast.makeText(这一点,产品图保存在:+ photoPath,Toast.LENGTH_SHORT).show(); camera.start preVIEW();
newImage.recycle();
newImage = NULL;
cameraBitmap.recycle();
cameraBitmap = NULL;
}
I'm using Google's CameraPreview sample demo. Here, I have the cameraPreview, and an overlayed image over cameraPreview.
When I take the photo, only the cameraPreview is saved, but I need the overlay image to be saved too over the cameraPreview.
This is the way I save cameraPreview's photo, but I need to know what would be the best way for overlaying booth images and save them into one.
public void onPictureTaken(byte[] data, Camera camera) {
String photoPath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/miFoto.jpg";
try {
FileOutputStream fos = new FileOutputStream(photoPath);
fos.write(data);
fos.close();
} catch (IOException e) {
Toast.makeText(this, "Pic not saved", Toast.LENGTH_SHORT).show();
return;
}
Toast.makeText(this, "Pic saved in: " + photoPath, Toast.LENGTH_SHORT).show();
camera.startPreview();
}
解决方案
I finally made it this way:
public void onPictureTaken(byte[] data, Camera camera) {
Bitmap cameraBitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
Bitmap cameraScaledBitmap = Bitmap.createScaledBitmap(cameraBitmap, 1280, 720, true);
int wid = cameraScaledBitmap.getWidth();
int hgt = cameraScaledBitmap.getHeight();
Bitmap newImage = Bitmap.createBitmap(wid, hgt, Bitmap.Config.ARGB_8888);
Bitmap overlayScaledBitmap = Bitmap.createScaledBitmap(overlayBitmap, wid, hgt, true);
Canvas canvas = new Canvas(newImage);
canvas.drawBitmap(cameraScaledBitmap , 0, 0, null);
canvas.drawBitmap(overlayScaledBitmap , 0, 0, null);
File storagePath = new File(Environment.getExternalStorageDirectory().getAbsolutePath());
storagePath.mkdirs();
String finalName = Long.toString(System.currentTimeMillis());
File myImage = new File(storagePath, finalName + ".jpg");
String photoPath = Environment.getExternalStorageDirectory().getAbsolutePath() +"/" + finalName + ".jpg";
try {
FileOutputStream fos = new FileOutputStream(myImage);
newImage.compress(Bitmap.CompressFormat.JPEG, 80, fos);
fos.close();
} catch (IOException e) {
Toast.makeText(this, "Pic not saved", Toast.LENGTH_SHORT).show();
return;
}
Toast.makeText(this, "Pic saved in: " + photoPath, Toast.LENGTH_SHORT).show();
camera.startPreview();
newImage.recycle();
newImage = null;
cameraBitmap.recycle();
cameraBitmap = null;
}
这篇关于保存相机preVIEW与叠加图像的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文