I have tried working with a bit of code to decode a file from SD and then edit it. Because of this editing that needs to be done, keeping a higher scaled image is important. Some phones run into memory issues, whereas others have enough room in their heap to continue the decode without a set option.
//the following is ending a process in which a photo is taken and saved
//under "/sdcard/folder/photo.png"
FileOutputStream fos= new FileOutputStream(photo.getPath());
fos.write(jpeg[0]);
fos.close();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
Bitmap originalFile = BitmapFactory.decodeFile("/sdcard/folder/photo.png",options);
I am basically looking into whether there is a way to almost set an if statement to put the option into place (if needed) otherwise continue without it.
As a workaround, wrap decoding into a try-catch and if "out of memory" exception happen, just catch it and try decode with properly set inSampleSize.
However, this looks more like a hack than a solution.
Basically, you need to know how much memory your decoded bitmap will take and how much memory is available for your application's heap to grow in the system right now.
First is easy to find out: width*height*4 bytes (by default decoding is in ARGB8888).
But I have no idea how to get the heap's memory size.
In my android app i have set the image on ImageView capture by camera. its working fine. but when i capture image and back to the screen with setting that image on imageview and if i do this 3 to 4 time i got This ERROR BITMAP SIZE EXCEEDS VM BUDGETS ...................please need any solution for it.
this is my code below :
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4;
options.inTempStorage = new byte[16 * 1024];
image_from_camera.setImageBitmap(BitmapFactory.decodeFile(
"/sdcard/"+chore_string+".jpg", options));
i have done using bitmap.recycle(); or System.gc();
but this is not working . i need to have free the memory from bitmap when again camera button click to take second picture in app. PLEASE NEED ANY HELP........
THANKS. ...
increasing the value of the inSampleSize will decrease the memory overhead required to load the image. Change it to 8,12 or 16... and the image should eventually load but it might not look very good.
However, it seems like you might be using a good bit of memory prior to the load.
Use System.getRuntime() to get the runtime and then see what your max memory, total memory and free memory are to better understand how much space you have.
It's possible you are leaking memory prior to this allocation.
http://developer.android.com/reference/java/lang/Runtime.html
also (annoyingly) if you are using a device that can't run android 3.0 not all of the memory used will show up in the runtime calls. consider using a 3.0 device to more fully understand the memory usage.
I have a photo on disk with dimensions 2560 x 1920. This is often too large to load into memory, so I'm trying to use BitmapFactory.Options.inSampleSize to conserve memory. From the docs:
inSampleSize: If set to a value > 1, requests the decoder to subsample the original image, returning a smaller image to save memory.
This is how I use it:
BitmapFactory.Options optsDownSample = new BitmapFactory.Options();
optsDownSample.inSampleSize = 3;
Bitmap bmp = BitmapFactory.decodeFile(path, optsDownSample);
but the app still sometimes crashes on the last line there, and from logcat I can see it's trying to allocate ~5mb, and I suspect this is because the downsampling is not really being honored.
Anyone else know what could be going on here, am I using inSampleSize incorrectly?
Thanks
I'm also struggling understanding how to use the BitmapFactory.Options, based on all the documentation I've read I believe you are just missing the optsDownSample.inJustDecodeBounds = false; as indicated on the Android Developers site.
Best of lucks!
This question already has answers here:
Strange OutOfMemory issue while loading an image to a Bitmap object
(44 answers)
Closed yesterday.
I am getting the following error after creating bitmap second time around:
04-17 18:28:09.310: ERROR/AndroidRuntime(3458): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
this._profileBitmap = Bitmap.createBitmap(_profileBitmap, xCoor, yCoor, width, height);
From log:
04-17 18:27:57.500: INFO/CameraCropView(3458): Original Photo Size: W 1536 x H 2048
04-17 18:28:06.170: INFO/CameraCropView(3458): xCoor: 291
04-17 18:28:06.170: INFO/CameraCropView(3458): yCoor: 430
04-17 18:28:06.170: INFO/CameraCropView(3458): Width: 952
04-17 18:28:06.170: INFO/CameraCropView(3458): Height: 952
Since the image is huge I get the error. But the interesting thing is the error does not happen the first time, only when I take the picture the second time, which makes me believe this profileBitmap is NOT destroyed. How do I clean this up?
I had the same problem and fix it this way:
My app was ~18MB size, and when I see how much memory left free I was shocked - 654KB (on 1GB RAM!). So I just deleted almost all images from project and downloaded them from the internet on first start, and use pics from SD card when needed.
To check total/free memory for your app use:
Runtime.getRuntime().totalMemory();
Runtime.getRuntime().freeMemory();
EDIT: I forgot the main thing - add in your manifest, between application tag, this line:
android:largeHeap="true"
There are many problems with memory exceptions with bitmaps on Android, many of which are discussed on stackoverflow. It would probably be best if you went through the existing questions to see if yours matches one of the existing ones, then if not, write up what makes your situation different.
Some examples:
Out of memory exception due to large bitmap size
Android: out of memory exception in Gallery
Android handling out of memory exception on image processing
etc:
https://stackoverflow.com/search?q=android+out+of+memory+exception+bitmap
I have explained it in this blog post: android bitmap processing tips
Now here are tips which you can follow and can avoid out of memory exception in your Android Application.
Always use Activity context instead of Application context. because Application context cannot be garbage collected. And release resources as your activity finishes. (life cycle of object should be
same as of activity).
2 . When Activity finishes. Check HEAP DUMP (memory analysis tool in Android studio).
If there are objects in HEAP DUMP from finished activity there is memory leak. review your
code and identify what is causing memory leak.
Always use inSampleSize
Now what is inSampleSize ?
with the help of inSampleSize you are actually telling the decoder not to grab every pixel in memory, instead sub sample image.
This will cause less number of pixels to be loaded in memory than the original image. you can tell decoder to grab every 4th pixel or every second pixel from original image.
if inSampleSize is 4. decoder will return an Image that is 1/16 the number of pixels in original image.
so how much memory you have saved ? calculate :)
Read Bitmap Dimensions before loading into memory.
How reading bitmap dimensions before loading image into memory can help you avoid out of
memory error ? Let's Learn
use inJustBounds = true
here is technique with the help of which you can get image dimension beore loading it in memory
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.id.myimage, options);
int imageHeight = options.outHeight;
int imageWidth = options.outWidth;
String imageType = options.outMimeType;
Above code snippet will not give us any image/bitmap. it will return null for bitmap Object.
but it will definitely return width and height of that image. which is R.id.myimage.
Now you have width and height of Image. you can scale up or scale down image based on these factors:
ImageView size which will be used to display Image.
Available amount of memory. you can check available amount of memory using ActivityManager and getMemoryClass.
Screen size and density of device.
Use appropriate Bitmap Configuration
Bitmap configurations is color space/color depth of an Image. Default bitmap Configuration in Android is RGB_8888 which is 4 bytes per pixel.
If you use RGB_565 color channel which use 2 Bytes per pixel. half the memory allocation for same resolution :)
Use inBitmap property for recycling purpose.
Do not make static Drawable Object as it cannot be garbage collected.
Request large heap in in manifest file.
Use multiple processes if you are doing lot of image processing(memory intensive task) or use NDK (Native Development using c, c++)
You can try calling recycle() on the bitmap when you are done with it. This will clear all the image data and free up the memory. If anything tries to draw the bitmap after this then your app will crash. If you do get a crash it may help you find out what is still holding onto your bitmap.
This happens because you are loading the bitmap directly,which consumes a lot of memory.
Instead use a scaled down version of the picture in _profileBitmap.
This guy explains it pretty well.
http://androidcocktail.blogspot.in/2012/05/solving-bitmap-size-exceeds-vm-budget.html
With Larger images it can be avoided by sampling them into smaller size.
Use below example -
File f = new File(selectedImagePath);
// First decode with inJustDecodeBounds=true to check dimensions
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(f), null, options);
// Calculate inSampleSize
options.inSampleSize = calculateInSampleSize(options, 720, 1280); //My device pixel resolution
// Decode bitmap with inSampleSize set
options.inJustDecodeBounds = false;
Bitmap bmpPic = BitmapFactory.decodeStream(new FileInputStream(f), null, options);
Bitmap bmpPic1 = Bitmap.createBitmap(bmpPic, 0, 0, bmpPic.getWidth(), bmpPic.getHeight(), mat, true);
img.setImageBitmap(bmpPic1); //img is your ImageView
Reference-
http://developer.android.com/training/displaying-bitmaps/load-bitmap.html
You could use a vector Drawable . It uses an xml file to describe your image , so it consumes less memory.
To do that you should use the SVG format for your images and then generate the xml file using one of these 2 solutions :
Solution 1 : Use the vector asset studio in Android Studio : right click on Drawable file in your project -> new -> vector asset
Solution 2 : Use the svg2android website : https://inloop.github.io/svg2android
Check out this link for further information:
https://developer.android.com/studio/write/vector-asset-studio.html
I had the same issue when the phone was powered off and back on. Simply setting the bitmaps to null and calling System.gc(); fixed all the problems.
I had this issue because I was modifying a bitmap once, and then modifying the modified version a second time, resulting in three versions of the same bitmap (original, plus the two modified versions) being in memory at the same time.
I fixed it by changing my image-editing code to apply both modifications to the same bitmap as a kind of batch process, halving the number of modified versions that my app had to hold in memory.
I read many discussions about the inSampleSize OutOfMemory dilemma.
Cannot get a good solution so i ask a question about it.
Im currently loading a bitmap with inSampleSize=4.
That will give me a Bitmap with the size 648x388.
Original On disk size is 2592x1592.
Im writing text on 648x388 bitmap and saving it back to disk.
Im writing on the 648x388 because the 2592x1592 give me OutOfMemory .
The way it works is that there can be 1-10 648x388 Bitmaps to be saved in a while loop.
I want to change this loop to save 1-10 2592x1592 Bitmaps.
How can i securely load the 2592x1592?
I don care about the resolution going down 60% or more.
As long as the Bitmap has the same size 2592x1592.
Is there a way to maybe keep the size but make Bitmap thinner,
removing color without making quality bad.
My first thought was going something like this to get the biggest bitmap i could get:
I have not tested this but get a feeling it's a bad way
boolean work = true;
int insample = 2;
BitmapFactory.Options options = new BitmapFactory.Options();
while(work){
try{
options.inSampleSize = insample;
bitmap = BitmapFactory.decodeFile(filePath,options);
work = false;
}catch(Exception e){
insample++;
}
}
any help would be grate.
Image processing requires a lot of memory. you cant use the whole bitmap and just modify it on your phone. use a web service for that. upload, process, download. sorry there is no other way a decoded bitmap just takes a lot of memory.
And by the way you cant catch an outOFMemory Exception. the app just crashes.
There's a hard limit on process size in Android and a 4 mega-pixel image at four bytes a pixel will hit it all by itself (on many devices), without any room for your program.
I think you are going to need to do one of two things: Create a web service to do the image processing on a server/in the cloud; or learn to do your image processing "on-the-fly" by manipulating the data directly instead of using a bitmap.