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2014/10/16 ¤W¤È 08:10:12
android Programming Glossary: argb_8888http://stackoverflow.com/questions/11511522/byte-array-image-to-bitmap cameraBitmap.getHeight Bitmap.Config.ARGB_8888 I want the camera image converted to bitmap. Any suggestion... question Unfortunately the camera's image format is not ARGB_8888. Most likely it's something like YUV420p or maybe even the JPEG..
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap.. share improve this question Since you're using ARGB_8888 format every pixel is an uint32_t not uint16_t . Try changing..
http://stackoverflow.com/questions/14988990/android-fast-bitmap-blur the correct invocation arguments. For bluring an ordinary ARGB_8888 typed bitmap named photo here they are final RenderScript rs..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory the data inside. Bitmaps being used and restored are in ARGB_8888 format. of course you can change it to whatever you wish just.. graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap..
High resolution Image - OutOfMemoryError http://stackoverflow.com/questions/18385362/high-resolution-image-outofmemoryerror also read HPROF files as suggested in comments. By default ARGB_8888 pixel format is used which means 4 bytes per pixel. Very good..
http://stackoverflow.com/questions/2043019/image-processing-on-android in Java. I suggest you work with an easier format like ARGB_8888 which will mean you have 32 bits or four bytes per pixel and..
How to prevent Android's drawBitmap from only drawing black images? http://stackoverflow.com/questions/3580051/how-to-prevent-androids-drawbitmap-from-only-drawing-black-images Bitmap shadowImage32 shadowImage.copy Bitmap.Config.ARGB_8888 true Canvas c new Canvas shadowImage32 c.drawBitmap originalBitmap.. do something like Bitmap shadowImage32 shadowImage.copy ARGB_8888 true after the extractAlpha call and draw onto that guy instead..
Quality problems when resizing an image at runtime http://stackoverflow.com/questions/4231817/quality-problems-when-resizing-an-image-at-runtime the images you need to insure your image stays as a 32 bit ARGB_8888 image. Using the code in my question you can simply add this.. the second decode. options.inPreferredConfig Bitmap.Config.ARGB_8888 After adding that the artifacts were gone but edges throughout.. false options.inPreferredConfig Bitmap.Config.ARGB_8888 Bitmap sampledSrcBitmap BitmapFactory.decodeFile STRING_PATH_TO_FILE..
http://stackoverflow.com/questions/4349075/bitmapfactory-decoderesource-returns-a-mutable-bitmap-in-android-2-2-and-an-immu to this solution that now works with any type of Bitmaps ARGB_8888 RGB_565 etc and deletes the temp file. See my method Converts.. bitmap loaded using options.inPreferredConfig Config.ARGB_8888 FileChannel channel randomAccessFile.getChannel MappedByteBuffer..
Access to raw data in ARGB_8888 Android Bitmap http://stackoverflow.com/questions/5010545/access-to-raw-data-in-argb-8888-android-bitmap to raw data in ARGB_8888 Android Bitmap I am trying to access the raw data of a Bitmap.. Bitmap I am trying to access the raw data of a Bitmap in ARGB_8888 format on Android using the copyPixelsToBuffer and copyPixelsFromBuffer.. channel Bitmap one Bitmap.createBitmap 1 1 Bitmap.Config.ARGB_8888 one.setPixel 0 0 0xef234567 Log.v hasAlpha Boolean.toString..
how to get RGB values of bitmap in android http://stackoverflow.com/questions/5669501/how-to-get-rgb-values-of-bitmap-in-android a pixel with the values R 123 G 93 B 49 FF7B 5D31 in the ARGB_8888 model. Where Alpha FF R 7B G 5D B 31. But this is stored as..
OutOfMemory error while joining large images http://stackoverflow.com/questions/6213690/outofmemory-error-while-joining-large-images bmp1.getWidth bmp2.getWidth height Bitmap.Config.ARGB_8888 Out of memory Canvas canvas new Canvas bmOverlay canvas.drawBitmap.. its apps to 16 MiB VM only. Also use RGB_565 instead of ARGB_8888. So your only solution is a To use BitmapFactory.Options.inSampleSize..
Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit? http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit bit image into 24 bit In my app I load an image as 32 bit ARGB_8888 this way Bitmap.Config mBitmapConfig mBitmapConfig Bitmap.Config.ARGB_8888.. Bitmap.Config mBitmapConfig mBitmapConfig Bitmap.Config.ARGB_8888 BitmapFactory.Options options new BitmapFactory.Options options.inPreferredConfig.. megabytes I'm watching the heap size . Changing the value ARGB_8888 to RGB_565 24 bit gives the same size in megabytes after scaling...
http://stackoverflow.com/questions/6681988/bitmap-image-out-of-memory pixels 5 megapixels . If the bitmap configuration used is ARGB_8888 the default from the Android 2.3 onward then loading this image..
http://stackoverflow.com/questions/11511522/byte-array-image-to-bitmap arg0 0 arg0.length Bitmap background Bitmap.createBitmap cameraBitmap.getWidth cameraBitmap.getHeight Bitmap.Config.ARGB_8888 I want the camera image converted to bitmap. Any suggestion. Thanks in advance 07 17 02 22 18.149 E AndroidRuntime 398 FATAL.. Native Method android bitmap bytearray share improve this question Unfortunately the camera's image format is not ARGB_8888. Most likely it's something like YUV420p or maybe even the JPEG compressed data. First of all determine what is your case...
Rotating a bitmap using JNI & NDK http://stackoverflow.com/questions/14398670/rotating-a-bitmap-using-jni-ndk bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap Config jmethodID valueOfBitmapConfigFunction env GetStaticMethodID.. and others here . android bitmap android ndk jni image rotation share improve this question Since you're using ARGB_8888 format every pixel is an uint32_t not uint16_t . Try changing your rotated Bitmap creation to use uint32_t for source and..
http://stackoverflow.com/questions/14988990/android-fast-bitmap-blur is very rare and I've spent some more time on figuring out the correct invocation arguments. For bluring an ordinary ARGB_8888 typed bitmap named photo here they are final RenderScript rs RenderScript.create myAndroidContext final Allocation input..
How to cache bitmaps into native memory http://stackoverflow.com/questions/17900732/how-to-cache-bitmaps-into-native-memory order to restore it creates the bitmap from scratch and puts the data inside. Bitmaps being used and restored are in ARGB_8888 format. of course you can change it to whatever you wish just don't forget to change the code... Large bitmaps could take.. bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap Config jmethodID valueOfBitmapConfigFunction env GetStaticMethodID..
JNI bitmap operations , for helping to avoid OOM when using large images [closed] http://stackoverflow.com/questions/18250951/jni-bitmap-operations-for-helping-to-avoid-oom-when-using-large-images bitmapCls createBitmap IILandroid graphics Bitmap Config Landroid graphics Bitmap jstring configName env NewStringUTF ARGB_8888 jclass bitmapConfigClass env FindClass android graphics Bitmap Config jmethodID valueOfBitmapConfigFunction env GetStaticMethodID..
High resolution Image - OutOfMemoryError http://stackoverflow.com/questions/18385362/high-resolution-image-outofmemoryerror Memory Allocation Tracker to see what is allocated. You can also read HPROF files as suggested in comments. By default ARGB_8888 pixel format is used which means 4 bytes per pixel. Very good article Bitmap quality banding and dithering . Your image..
http://stackoverflow.com/questions/2043019/image-processing-on-android 6 are green and the last 5 are blue. Dealing with that is hairy in Java. I suggest you work with an easier format like ARGB_8888 which will mean you have 32 bits or four bytes per pixel and each byte is its own value alpha red green blue . To test try..
How to prevent Android's drawBitmap from only drawing black images? http://stackoverflow.com/questions/3580051/how-to-prevent-androids-drawbitmap-from-only-drawing-black-images shadowImage originalBitmap.extractAlpha shadowPaint offsetXY Bitmap shadowImage32 shadowImage.copy Bitmap.Config.ARGB_8888 true Canvas c new Canvas shadowImage32 c.drawBitmap originalBitmap offsetXY 0 offsetXY 1 null imageView.setImageBitmap shadowImage32..
Quality problems when resizing an image at runtime http://stackoverflow.com/questions/4231817/quality-problems-when-resizing-an-image-at-runtime problem the artifacts and weird dithering introduced into the images you need to insure your image stays as a 32 bit ARGB_8888 image. Using the code in my question you can simply add this line to the options before the second decode. options.inPreferredConfig.. question you can simply add this line to the options before the second decode. options.inPreferredConfig Bitmap.Config.ARGB_8888 After adding that the artifacts were gone but edges throughout the images came through jagged instead of crisp. After some.. false options.inSampleSize inSampleSize options.inScaled false options.inPreferredConfig Bitmap.Config.ARGB_8888 Bitmap sampledSrcBitmap BitmapFactory.decodeFile STRING_PATH_TO_FILE options Resize Matrix matrix new Matrix matrix.postScale..
http://stackoverflow.com/questions/4349075/bitmapfactory-decoderesource-returns-a-mutable-bitmap-in-android-2-2-and-an-immu convert Immutable Bitmap into Mutable I add a improvement to this solution that now works with any type of Bitmaps ARGB_8888 RGB_565 etc and deletes the temp file. See my method Converts a immutable bitmap to a mutable bitmap. This operation doesn't.. type imgIn.getConfig Copy the byte to the file Assume source bitmap loaded using options.inPreferredConfig Config.ARGB_8888 FileChannel channel randomAccessFile.getChannel MappedByteBuffer map channel.map MapMode.READ_WRITE 0 imgIn.getRowBytes..
Access to raw data in ARGB_8888 Android Bitmap http://stackoverflow.com/questions/5010545/access-to-raw-data-in-argb-8888-android-bitmap to raw data in ARGB_8888 Android Bitmap I am trying to access the raw data of a Bitmap in ARGB_8888 format on Android using the copyPixelsToBuffer.. to raw data in ARGB_8888 Android Bitmap I am trying to access the raw data of a Bitmap in ARGB_8888 format on Android using the copyPixelsToBuffer and copyPixelsFromBuffer methods. However invocation of those calls seems.. is a sample Create 1x1 Bitmap with alpha channel 8 bits per channel Bitmap one Bitmap.createBitmap 1 1 Bitmap.Config.ARGB_8888 one.setPixel 0 0 0xef234567 Log.v hasAlpha Boolean.toString one.hasAlpha Log.v pixel before Integer.toHexString one.getPixel..
how to get RGB values of bitmap in android http://stackoverflow.com/questions/5669501/how-to-get-rgb-values-of-bitmap-in-android values for each pixel are packed in 4 bytes. In other words a pixel with the values R 123 G 93 B 49 FF7B 5D31 in the ARGB_8888 model. Where Alpha FF R 7B G 5D B 31. But this is stored as an int as 8692431. So to extract the Green value from 8692431..
OutOfMemory error while joining large images http://stackoverflow.com/questions/6213690/outofmemory-error-while-joining-large-images height bmp2.getHeight Bitmap bmOverlay Bitmap.createBitmap bmp1.getWidth bmp2.getWidth height Bitmap.Config.ARGB_8888 Out of memory Canvas canvas new Canvas bmOverlay canvas.drawBitmap bmp1 0 0 null canvas.drawBitmap bmp2 bmp1.getWidth 0.. such a large image is expected to crash indeed. Android limits its apps to 16 MiB VM only. Also use RGB_565 instead of ARGB_8888. So your only solution is a To use BitmapFactory.Options.inSampleSize to scale down the image or b Use Android NDK where..
Does “Bitmap.createScaledBitmap” convert an 32 bit image into 24 bit? http://stackoverflow.com/questions/6278992/does-bitmap-createscaledbitmap-convert-an-32-bit-image-into-24-bit &ldquo Bitmap.createScaledBitmap&rdquo convert an 32 bit image into 24 bit In my app I load an image as 32 bit ARGB_8888 this way Bitmap.Config mBitmapConfig mBitmapConfig Bitmap.Config.ARGB_8888 BitmapFactory.Options options new BitmapFactory.Options.. 24 bit In my app I load an image as 32 bit ARGB_8888 this way Bitmap.Config mBitmapConfig mBitmapConfig Bitmap.Config.ARGB_8888 BitmapFactory.Options options new BitmapFactory.Options options.inPreferredConfig mBitmapConfig mBitmap BitmapFactory.decodeFile.. and Height of the original bitmap it is 1 2 of the size in megabytes I'm watching the heap size . Changing the value ARGB_8888 to RGB_565 24 bit gives the same size in megabytes after scaling. Can someone explain this phenomenon and may be give me..
http://stackoverflow.com/questions/6681988/bitmap-image-out-of-memory the camera on the Galaxy Nexus takes photos up to 2592x1936 pixels 5 megapixels . If the bitmap configuration used is ARGB_8888 the default from the Android 2.3 onward then loading this image into memory takes about 19MB of memory 2592 1936 4 bytes..
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