I would like to save a preview frame as a jpeg image.
I have tried to write the following code...
but it's not possible to open a saved file as a jpeg image. Does anyone know how to save preview frames as jpeg images?
View 3 Replies
How can I convert from NV21 to JPEG. Currently, NV21 is the only previewFormat that is supported by the camera on a Nexus One (running Android 2.2).
View 2 Replies View RelatedI am trying to save a bitmap in a JPEG format, and i can see that the image is always stored with a lower quality even if i give the compression level as 100, however for PNG it is working fine. Similarly during Media.insert() or getContentResolver().insert() the image is stored with a lesser quality, I can see in that the compression level is 50 in the Media.java, however I tried to create my own method for the same function with quality 100.
View 3 Replies View RelatedI am confused on how to implement image processing algorithm on JPEG data.I have set P.setpicturesize (640,480) so the camera.takepicture (null,null,Imagecapture callbck) returns the image data. Void onPictureTaken(byte[] data, Camera Camera) returns JPEG data, but(x = data.length), the value of x is less than 640*480 bytes.Please kindly let me know how can I start editing pixel information of the image and image comparison algorithms.
View 2 Replies View RelatedI am developing an app in which i need the image in TIFF format.But in android u can convert your bitmap/image to only JPEG/png image. is there a way to convert JPEG/png file to TIFF format or is there any jar available to do so.
View 2 Replies View RelatedI managed to handle a full size image (2048x1536) (moving around, zooming, some colorfilters, etc). However, i can only load these images in memory as RGB_565, one at a time. I try to free as much bitmap memory as possible (by recycling every possible bitmap cached/ open in my app), and then load the full-sized image in RGB_565 format. This works well.
The user can make some modifications (color balance, brightness, etc) and I like to save the resulting image in a JPEG file. However, on screen, all edits are shown in RGB_565. You can see the posterization because of the reduced pixel-depth. The quality degradation on the screen is a minor problem. My main problem is to apply these edits to the actual and higher quality ARGB_8888 data of the original JPEG file.
Trying to load a ARGB_8888 JPEG file with size 2048x1536 is not possible. I get an out-of-memory error. Is there any way to apply color-filters to ARGB_8888 data (instead of RGB_565) so that i won't lose a lot of image-quality when trying to save modifications into a JPEG file?
I would appreciate to hear from you what would be the available options in Android to perform a lossless jpeg rotation of a jpeg image -> Rearranging the image data from landscape to portrait by rotation without ever fully decoding the image. My problem is that my device's camera always take the images in landscape mode and sometimes I would need to rotate the image to portrait to be used in my application. This takes time and memory if I need to do it in the standard way (decode the image, apply rotation operation to the pixels and encode again). Doing it without decoding the image would bring a significant improvement in performance. I have seen that in Android platform (Cupcake) jpegtran.c (which performs this operation beautifully) is available under /external/jpeg but this functionality is not available (a.f.a.k) on the application framework. How can I use this function? I guess I need to use JNI to be able to access this functionality, right? Other ways? Could you give me any hint on how I could do this or if there is another easier and quicker way to do it?
View 2 Replies View RelatedIs it possible to capture a frame from a video in android and save it or use it in any way in the application?
View 1 Replies View RelatedI want to add frame to image with title and subtitle. The thing that I want to do is as follows : There are number of styled frames available and user selects any picture from the phone memory or takes a picture from camera, now on selecting any frame that picture should be in that frame. Also below that frame there should be title and subtitle of the image.
I hope I have made it clear of what I want to know.
1.myJpegFile = new File("images/jpegImage.jpg");
2.output = new BufferedOutputStream(new FileOutputStream(myJpegFile));
3.encoder = JPEGCodec.createJPEGEncoder(output);
4.encoder.encode(myJpegImage); Please could you give me the equivalent code for line no. 3 and 4 in Android?
Does someone know how I can overlay an image over the camera preview?
View 6 Replies View RelatedI've created an application that show around 250 images in ImageView. Images are loaded one after another, 15-30 images per second. Basically the whole thing gives an illusion of a rotating 3D object, at least it should.
The problem is next, app hangs when loading certain images(i.e. I see a few seconds of fluid animation and then animation hangs, jump 10-15 frames(images) ahead and continues. It always happens at the same places in animation cycle.
I though that Android might not have enough resources to handle something like this, so I've resized images to half their size, but it did't help. I've tried buffering images but that did't help either(actually, maybe a little, I think that animation looks a little bit smoother).
And now the weirdest thing. I use the touch screen to allow users to "rotate" the 3D object on those images, and while rotating I again experience those hangs at exactly the same places as with the animation.
All images are in .png format and their size vary from 15kB to 40kB.
I use the following code for the animation:
CODE:.....................
I'm trying to get the preview images of the android Camera onto a opengl texture. I have been successful so far, it works most of the times. Though sometimes I will just get a black screen when starting/ resuming the application. I have been debugging for days, not finding any clue. When debugging I noticed that both the camera callback and the onDrawFrame are called in such situations. the bytearray of the camera does contain data.
View 10 Replies View RelatedToday I tried the sample code to get the camera preview working
(http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/graphics/CameraPreview.html)
But the image looks distorted when I start the application on my Galaxy S.
This is the code that I have for camera preview and image capture.I am trying to do camera preview and as I press the space button I am trying to take picture and save it in the picture gallery of the Android development phone. The code compiles fine,but as I press the space button,it captures the image and throws an exception and closes the application...
CODE:...................
Anyone figured out how to do this on the X? There aren't many options in settings at all. I might have to jump back to K9 Mail.
View 10 Replies View RelatedFile is present in sdcard/image.jpg I would like to create my own application (activity). On a button press, the image stored in the sdcard needs to be displayed using the built-in image viewer. On pressing the back button from the Image viewer, it should go back to my running application.
View 2 Replies View RelatedI would prefer to not have to purchase a Flip Video Recorder to provide me the frame by frame playback needed (coaching girls softball) for instant instruction at practice. Is there an app that provides playback of video at a frame by frame rate?
View 1 Replies View RelatedI am writing an app to capture the camera preview frames and convert it to bitmap in Android.
Here is my code:...........
After I start preview, the callback got called with data, but the bitmap is null.
What did I do wrong when convert the byte array to BitMap?
What I am needing is a method to get grayscale pixel data from an image or preview. I am not interested in saving the picture as a jpeg etc, just need the grayscale data.
I am aiming at API 10 (as this is the device available for testing).
On top of this, I am not having any luck getting the camera to work on the Eclipse emulator.
I have the following code to save a bitmap to a jpg file.
It works except I couldn't specify the file name.
The image file is save in /sdcard/dcim/Camera.
How do I specify a file name, or even the saved path?
CODE:.......................
I'm trying to build a live wallpaper using frames. I can't find any good tutorials on how to even build a live wallpaper. When I run app from eclipse i get these errors.
[2012-05-19 22:26:32 - LiveWallpaper] No Launcher activity found!
[2012-05-19 22:26:32 - LiveWallpaper] The launch will only sync the application package on the device!
It does install to the emulator. It all seems to work. I go in to the live wallpaper menu, find my live wallpaper in there open it, it loads. but its not moving through the frames. It only shows the last frame. I set it as wallpaper. It also doesn't do anything. Also would like to center the images.
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.service.wallpaper.WallpaperService;
import android.view.SurfaceHolder;
[code]...
I'm working on displaying a set of images, then if the users wishes, to have the ability to save the image to the SD card. I need help saving them to external storage. Can someone help me out with this?
View 1 Replies View RelatedI'm developing an image editor on android. I have a problem when I have to save the image. If I save the image with a outputstream, I can save the image but my program and android's gallery can't see the new image. If I save the image with MediaStore.Images.Media.insertImage, I can see the saved image but the problem it's that this function save a little image called thumbnails which I don't know what to do.
View 2 Replies View RelatedCan anyone please provide me some idea/guidance on how to save an image from a webserver and set it as wallpaper? i am developing an android application which needs to do that and i am new in android. Thanks a lot.I had tried writing my own code but it doesn't work as i can't find my images after download but the wallpaper has change to the downloaded picture. here is my existing code.
View 1 Replies View RelatedI am working with camera.. I am facing one problem during capturing image.The image is not saving directly to gallery.But when i reboot my device its appearing. Can anybody tell me why this happens.and How can i solve it.
View 4 Replies View RelatedI am using webview in android to display images (mainly using google ajax API), Now if I want to save an image into local storage, How do I do ? I have image url, which can be used for saving.
View 1 Replies View RelatedI want to save images from a particular URL into the sqlite db and then display it from the database..Can anyone tell me as how i could do that.
View 3 Replies View RelatedI draw 2d images on the canvas using the following tutorial.
http://www.designerandroid.com/?cat=3
I want to save what ever displaying in a canvas as a jpg image, how can i do it?
My app creates a puzzle grid using table layout, tablerows and textviews. I want a user to be able to save this grid to the SD card so that it can be printed or copied or loaded onto another device.
How do you save a view so that when it's printed it will look like it does on the android screen?