¡@
2014/10/16 ¤W¤È 08:12:39
android Programming Glossary: downsampleandroid: get image dimensions without opening it http://stackoverflow.com/questions/11128481/android-get-image-dimensions-without-opening-it loading them into RAM. I need to know the size so I can downsample them accordingly when loading them. Without downsampling them..
Loading large images without OutOfMemoryError http://stackoverflow.com/questions/11931742/loading-large-images-without-outofmemoryerror So I guess for the time being the only solution is to downsample the image. java android android canvas android image share..
http://stackoverflow.com/questions/15087668/how-to-convert-pcm-samples-in-byte-array-as-floating-point-numbers-in-the-range audio data is 16 bit PCM with samplerate 22khz . I want to downsample the audio from 22khz to 8khz how to represent the samples in.. share improve this question You ask two questions How to downsample from 22kHz to 8kHz How to convert from float 1 1 to 16 bit int.. of my answer in in case it helps someone else. 1. How to downsample from 22kHz to 8kHz A commenter hinted that this can be solved..
http://stackoverflow.com/questions/2220949/handling-large-bitmaps InputStream method. So I chose to downsample the images using BitmapFactory Options sample size 2 . This.. should I handle such cases Is there a way to selectively downsample only high resolution images android performance bitmaps share..
BitmapFactory.decodeStream returning null when options are set http://stackoverflow.com/questions/2503628/bitmapfactory-decodestream-returning-null-when-options-are-set it never returns Bitmaps. What I'm trying to do is to downsample a Bitmap before I actually load it to save memory. I've read..
Android: Question about Bitmaps, memory usage, and scaling http://stackoverflow.com/questions/6205496/android-question-about-bitmaps-memory-usage-and-scaling null try Options opts new Options opts.inSampleSize downsample image BitmapFactory.decodeStream imgStream null opts catch.. imgStream null opts catch OutOfMemoryError ome downsample downsample 2 Log.i out of mem try using downsample return image.. null opts catch OutOfMemoryError ome downsample downsample 2 Log.i out of mem try using downsample return image The ideal..
http://stackoverflow.com/questions/7797641/android-galleryview-recycling make sure its the proper view type. Update You should also downsample the images before you display them. Lets assume that you have.. going to take up 125x125 pixels on the screen. You need to downsample the image before you display it. To know how much you need to.. image before you display it. To know how much you need to downsample the bitmap you must first get its size int maxSize 125 make..
external allocation too large for this process http://stackoverflow.com/questions/8250704/external-allocation-too-large-for-this-process that the bitmap you are loading is too big. You need to downsample it. See this question for some great examples on how to deal.. This will decode the entire bitmap instead you want to downsample the bitmap to the desired resolution. Lets say your imageview..
android: get image dimensions without opening it http://stackoverflow.com/questions/11128481/android-get-image-dimensions-without-opening-it in pixels of images which are stored on the sdcard before loading them into RAM. I need to know the size so I can downsample them accordingly when loading them. Without downsampling them I get an OutOfMemoryException. Anyone knows how to get dimensions..
Loading large images without OutOfMemoryError http://stackoverflow.com/questions/11931742/loading-large-images-without-outofmemoryerror S2 didn't throw an exception but the returned Drawable was null. So I guess for the time being the only solution is to downsample the image. java android android canvas android image share improve this question Take a look at http developer.android.com..
http://stackoverflow.com/questions/15087668/how-to-convert-pcm-samples-in-byte-array-as-floating-point-numbers-in-the-range containing input samples in the range 1.0 to 1.0 . The audio data is 16 bit PCM with samplerate 22khz . I want to downsample the audio from 22khz to 8khz how to represent the samples in byte array as floating point numbers 1 and 1 and back to byte.. byte array java android floating point signal processing share improve this question You ask two questions How to downsample from 22kHz to 8kHz How to convert from float 1 1 to 16 bit int and back Note that the question has been updated to indicate.. that #1 is taken care of elsewhere but I'll leave that part of my answer in in case it helps someone else. 1. How to downsample from 22kHz to 8kHz A commenter hinted that this can be solved with the FFT. This is incorrect I mention this here http blog.bjornroche.com..
http://stackoverflow.com/questions/2220949/handling-large-bitmaps OutOfMemoryExceptions sporadically when I am using BitmapFactory.decodeStream InputStream method. So I chose to downsample the images using BitmapFactory Options sample size 2 . This gave a better output no OOMs but this affects the quality of.. no OOMs but this affects the quality of smaller images. How should I handle such cases Is there a way to selectively downsample only high resolution images android performance bitmaps share improve this question There is an option in BitmapFactory.Options..
BitmapFactory.decodeStream returning null when options are set http://stackoverflow.com/questions/2503628/bitmapfactory-decodestream-returning-null-when-options-are-set use it with options as in .decodeStream inputStream null options it never returns Bitmaps. What I'm trying to do is to downsample a Bitmap before I actually load it to save memory. I've read some good guides but none using .decodeStream . Handling large..
Android: Question about Bitmaps, memory usage, and scaling http://stackoverflow.com/questions/6205496/android-question-about-bitmaps-memory-usage-and-scaling InputStream stream Bitmap image null int dowsample 1 while image null try Options opts new Options opts.inSampleSize downsample image BitmapFactory.decodeStream imgStream null opts catch OutOfMemoryError ome downsample downsample 2 Log.i out of mem.. Options opts.inSampleSize downsample image BitmapFactory.decodeStream imgStream null opts catch OutOfMemoryError ome downsample downsample 2 Log.i out of mem try using downsample return image The ideal solution would be if Bitmap had a Bitmap.drawBitmap.. downsample image BitmapFactory.decodeStream imgStream null opts catch OutOfMemoryError ome downsample downsample 2 Log.i out of mem try using downsample return image The ideal solution would be if Bitmap had a Bitmap.drawBitmap inputstream.....
http://stackoverflow.com/questions/7797641/android-galleryview-recycling convert the convertView to match what you want but first make sure its the proper view type. Update You should also downsample the images before you display them. Lets assume that you have a 500x500 pixel image saved under res drawable but the image.. pixel image saved under res drawable but the image is only going to take up 125x125 pixels on the screen. You need to downsample the image before you display it. To know how much you need to downsample the bitmap you must first get its size int maxSize.. up 125x125 pixels on the screen. You need to downsample the image before you display it. To know how much you need to downsample the bitmap you must first get its size int maxSize 125 make 125 the upper limit on the bitmap size int resId points to bitmap..
external allocation too large for this process http://stackoverflow.com/questions/8250704/external-allocation-too-large-for-this-process share improve this question The error you are getting means that the bitmap you are loading is too big. You need to downsample it. See this question for some great examples on how to deal with this Android Strange out of memory issue Update Instead.. the bitmap with Bitmap b BitmapFactory.decodeFile pathToImage This will decode the entire bitmap instead you want to downsample the bitmap to the desired resolution. Lets say your imageview will be 125x125 pixels and your image is 1000x1000 pixels...
|