how to make android camera better

As a reference for implementing image recognition at the Java layer. We recommend that you use the JNI layer to extract data. -- Leon Http://blog.csdn.net/chenji001/archive/2010/08/25/5836685.aspx In Android, if you want to process preivew data (such as face tracking), the callback function at the Java layer will cause frequent memory application and copy. Even if you use the latest setpreviewcallbackwithbuffer function, memory copy across th

); if (data!=null) { switch (Requestcode) { casetake_photo://take pictures and choose //two ways get a picture of a good shot if (Data.getdata () !=null| | data.getextras () !=null) {//prevents no return result uriuri=data.getdata (); if (uri!= NULL) { photo= Bitmapfactory.decodefile (Uri.getpath ()); //Get Pictures } if (photo==null) { bundlebundle= data.getextras (); if (bundle!= null) { photo = (Bitmap) bundle.get ("Data"); } else{ Toast.maketext (Getapplicationcontext (), "No picture

Tag: Picture is rotated to the same directionOne of the things that must be considered when using camera images in Android apps is the orientation of the image, which can be better displayed only by judging the direction of the image. This article will introduce a way to judge the orientation of a picture by Exifinterface!On the code:/** * * Use the picture under the given path to set ImageView * * @param i

Private voidsavefullimage (String str) {Intent Intent=NewIntent (mediastore.action_image_capture); //folder AAAAFile path1 =NewFile (path +floername); if(!path1.exists ()) {Path1.mkdirs (); } File File=NewFile (path1, str + ". jpg"); Moutputfileuri=uri.fromfile (file); Intent.putextra (Mediastore.extra_output, Moutputfileuri); StartActivity (Intent); Toast.maketext (Getapplicationcontext (), str+ "Photo has been replaced", 0). Show (); }Configure manifest file Add permission

In a previous company to do an app inside the upload avatar function, then studied for a long time, found an article about the H5 Camera and album calls, so it solved the problem!! I record here so that some people need, can refer to!!!!The following is a complete HTML page content, placed on the server and then browse on it, only support chrome and Safari core browser, QQ browser, Chrome,safari browser can be. Different phones and browsers do not sho

Android Candid Camera function/Phone shutdown can take photos The effect is as follows: In fact, the camera and the record to achieve the same way, are used to WindowManager to draw the principle of small desktop controls. Then I will not say more ... First, we need a surfaceview: Second, then the operation is to produce this small control:

On the Internet to check the relevant articles, think that they understand, but the actual test and online said is not the same (later research found that the person wrote is wrong!!!) , therefore, remind everyone to be bold in questioning and ask questions.First, the camera class, this class is located under the package Android.graphics, for the image 3D transformation, through rotation, offset, and so on, finally through the Getmatrix (matrix) metho

The algorithm of freeze filter is to deepen the pixel color, each pixel is used RGB three colors to represent, (0,0,0) is pure black, and (255,255,255) is pure white, therefore will not have a pixel point of the RGB refers to become smaller, the color will deepen intwidth =Image. GetWidth ();intHeight =Image. GetHeight ();intR, G, B, pixel; for(inty =0; Y for(intx =0; x Image. getrcomponent (x, y);//Get RGB tri-ColorsG =Image. getgcomponent (x, y); B =Image. getbcomponent (x, y);

Recently, the project has done, call the camera to take pictures to get the function.Use the previous code directly and find that there is a problem with Android7.0.After Android6.0, dynamic application permissions have become the norm.Call camera to take pictures of this feature, you need to dynamically request camera permissions, SD card read and Write permissi

(a) Call camera to save to the specified folder, Intent.putextra (file) to save the captured photos directly to the folderHowever, this method can not be used to shoot video, the same in the camera, if the path is passed, the screen card will be dead, while the incoming path will have an empty file, the file name is correct, but no data, and in the callback function Onactivityresult data is not empty, The p

( System.currenttimemillis ()) + ". jpg"); cameraintent.putextra ( Android.provider.mediastore.extra_output,muri); cameraintent.putextra (" Return-data ", true); sTartactivityforresult (cameraintent,1);} /*** gets the data returned by the camera */privatevoidgetimgfromcamera () { ContentResolvercr= This.getcontentresolver (); try{if (camerabitmap!=null) Camerabitmap.recycle ();// if not released, keep taking pictures, will not have enough memory

Android call camera, you can write an activity, assign the relevant parameters, open the front camera can be;To apply for the permission, add in Androidmanifest.xml: Main function, open front cameraPrivate Camera Openfrontfacingcameragingerbread () { int cameracount = 0;

; Compensate The Mirror} else {//back-facing result = (info.orientation-degrees + 360)% 360; } camera.setdisplayorientation (Result); }The method of dynamic acquisition is landscape (horizontal screen) or portrait (vertical screen) to change the preview map.(The cameraid of the rear screen is 0)2. The correct angle of image preservation (when we take the photo, we find that the angle is not correct)@Overridepublic void Onpicturetaken (byte[] data, came