is there is no one which help me in camera issue.
On Fri, Jul 15, 2011 at 4:40 PM, Ankit Kasliwal <[email protected]
> wrote:
> Hello Everyone,
>
> Is there anyway to reduce the resolution of picture taken using
> camera? It takes long time to upload the image to server Coz i m converting
> the image in bytes and
> send to server and may be the size of image may be 3 MB.
> Here is my code which i use.
>
>
> SurfaceHolder.Callback surfaceCallback=new SurfaceHolder.Callback() {
>
>
> public void surfaceCreated(SurfaceHolder holder)
> {
> mCamera=Camera.open();
> try
> {
> mCamera.setPreviewDisplay(previewHolder);
> mCamera.setOneShotPreviewCallback(null);
> ColorMatrix cm = new ColorMatrix();
> cm.setSaturation(.5f);
>
>
> //paint.setColorFilter(new ColorMatrixColorFilter(cm));
>
> }
> catch (Throwable t)
> {
> Log.e("PictureDemo-surfaceCallback","Exception
> insetPreviewDisplay()", t);
> Toast.makeText(TakePic.this,t.getMessage(),
> Toast.LENGTH_LONG).show();
> }
> }
>
> public void surfaceChanged(SurfaceHolder holder,int format, int
> width, int height) {
> Camera.Parameters parameters=mCamera.getParameters();
>
> /*int bestWidth = 0;
> int bestHeight = 0;
>
> //Customise width/height here - otherwise defaults to screen
> width/height
> List<Camera.Size> previewSizes =
> parameters.getSupportedPreviewSizes();
> if (previewSizes.size() > 1)
> {
> Iterator<Camera.Size> cei = previewSizes.iterator();
> while (cei.hasNext())
> {
> Camera.Size aSize = cei.next();
> Log.v("SNAPSHOT","Checking " + aSize.width + " x " +
> aSize.height);
> if (aSize.width > bestWidth && aSize.width <=
> LARGEST_WIDTH
> && aSize.height > bestHeight && aSize.height <=
> LARGEST_HEIGHT)
> {
> // So far it is the biggest without going over the
> screen dimensions
> bestWidth = aSize.width;
> bestHeight = aSize.height;
> }
> }
> }
> if (bestHeight != 0 && bestWidth != 0)
> {
> Log.v("SNAPSHOT", "Using " + bestWidth + " x " +
> bestHeight);
> parameters.setPreviewSize(bestWidth, bestHeight);
> View cameView = null;
> //cameraView.setLayoutParams(new LinearLayout.LayoutParams(
> bestWidth,bestHeight));
> }*/ /*Not in 1.6*/
>
> /*Not in 1.6*/
> try
> {
> parameters.setPreviewSize(100, 100);
> parameters.setPictureFormat(PixelFormat.JPEG);
> parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
> parameters.setJpegQuality(75);
> mCamera.setParameters(parameters);
> mCamera.startPreview();
> }
> catch (Exception e) {
> parameters.setPreviewSize(100, 100);
> parameters.setPictureSize(20, 20);//parameters.setZoom(1);
> /*Not in 1.6*/
> //parameters.setZoom(0); /*Not in 1.6*/
> parameters.setPictureFormat(PixelFormat.JPEG);
>
> //parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO); /*Not in 1.6*/
> //parameters.setJpegQuality(100); /*Not in 1.6*/
> mCamera.setParameters(parameters);
> mCamera.startPreview();
> }
>
>
> //-- Must add the following callback to allow the camera
> toautofocus.
> mCamera.autoFocus(new Camera.AutoFocusCallback(){
> public void onAutoFocus(boolean success, Camera camera)
> {
> }
>
> } );
> }
>
> public void surfaceDestroyed(SurfaceHolder holder) {
> if(mCamera != null){
> mCamera.stopPreview();
> mCamera.release();
> mCamera=null;
> }
> }
> };
>
> Camera.PictureCallback photoCallback=new Camera.PictureCallback() {
> public void onPictureTaken(byte[] data, Camera camera) {
>
>
> ImgName = String.format("%d.jpg", System.currentTimeMillis());
> //FileOutputStream outStream = null;
> try {
>
>
> byte[] imgBtye = data;
>
> ColorMatrix cm = new ColorMatrix();
> float contrast = 2;
> float brightness = -25;
> cm.set(new float[] { contrast, 0, 0, 0, brightness,0,
> contrast, 0, 0, brightness,0, 0, contrast, 0, brightness, 0, 0, 0,
> contrast, 0 });
> Paint paint = new Paint();
> cm.setSaturation(2f);
> paint.setColorFilter(new ColorMatrixColorFilter(cm));
>
> Log.d(TAG, "onPictureTaken - wrote bytes: " +
> imgBtye.toString());
>
> GetLocationService();
>
> Intent i = new Intent(TakePic.this, AddDetail.class);
> i.putExtra("Pimg", imgBtye);
> i.putExtra("lat", lat);
> i.putExtra("lag", lag);
> startActivity(i);
>
> }
> finally
> {
>
> }
> }
> };
>
>
>
> *And the other code which i use for convert and upload the image in Bytes
> *
> if(PImg != null)
> {
> try
> {
> PImgString = Base64.encodeToString(PImg, 1);
> Log.d("PImgString", PImgString);
> }
> catch (Exception e) {
> PImgString = new String(PImgString);
> Log.d("PImgString catch", PImgString);
> }
> }
> --
>
> Thanks and Regards,
>
> Ankit Kasliwal
> [email protected]
> +91-9300-940-136
>
--
Thanks and Regards,
Ankit Kasliwal
[email protected]
+91-9300-940-136
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