android camera grip

This article is a summary of my personal development of the Camera APP. It mainly introduces the basic usage and precautions of FaceDetection. If you have any mistakes or deficiencies in this article, you are welcome to criticize and correct them.1. FaceDetection1. Version supportFaceDetection is Android (Android Version 4.0, ADT 14). Whether the feature is supp

Link Address: http://www.cnblogs.com/lknlfy/archive/2012/03/06/2382679.htmlI. OverviewCamera is a very important device for mobile phones, which can be said on every mobile phone now. Recall that at that time in the Linux camera programming really want to Nieyibahan. Someone would say that it's possible to use a webcam with a OpenCV under Linux, but I didn't do it, and I did it in the most primitive Way (V4L2). Before the

New Intent (); Intent.setpackage ("Com.android.camera"); Intent.setaction (mediastore.action_image_capture); 1); New Intent (); Intent.setpackage ("Com.android.camera"); // intent.setaction (mediastore.action_image_capture); Startactivityforresult (Intent, 1);New Intent ("Android.media.action.STILL_IMAGE_CAMERA"); Startactivityforresult (Imagecaptureintent,1);

When Android 2.3.7.r1 presses the menu key, the video is stopped. Press the menu key when you change the video to do not process it. The following modifications can be made: In packages/apps/cameraopen/src/COM/mediatek/camera/videocamera. Java In the onkeydown () method: Modify Case keyevent. keycode_menu: If (mheadupdisplay! = NULL mglrootview! = NULL ! Malertshowing ! Mmediarecorderrecording Mheadupdisp

When Android 2.3.7.r1 presses the menu key, the video is stopped. Press the menu key when you change the video to do not process it. The following modifications can be made: In packages/apps/CameraOpen/src/com/mediatek/camera/VideoCamera. java In the onKeyDown () method: Modify Copy codeThe Code is as follows: case KeyEvent. KEYCODE_MENU: If (mHeadUpDisplay! = Null mGLRootView! = Null ! MAlertShowing ! MMe

-compensation = 12;Exposure-compensation = 0;Expos-compensation-step = 0.166667;Scene-detect = off;Flash-mode = off;Effect-values = none, mono, negative, solarize, sepia, posterize, whiteboard, blackboard, aqua; picture-size = 640x480;Max-zoom = 59; effect = none;Saturation = 5;Whitebalance-values = auto, incandescent, fluorescent, daylight, cloudy-daylight;Picture-format = jpeg;Focus-distances = 1.000000, 34.000000, 34.000000; lensshade-values = enable, disable;Selectable-zone-af = auto;Iso-val

minimum color values are the same, which means gray, then S is defined as 0, and H is undefined and is usually written in the program as 0.Step 5: Otherwise, test L:If lIf l>=0.5, s= (maxcolor-mincolor)/(2.0-maxcolor-mincolor)Step 6: If r=maxcolor, h= (g-b)/(Maxcolor-mincolor)If G=maxcolor, h=2.0+ (b-r)/(Maxcolor-mincolor)If B=maxcolor, h=4.0+ (r-g)/(Maxcolor-mincolor)Step 7: From the calculation of the 6th step, H is divided into the 0~6 area. The RGB color space is a cube and the HSL color sp

After taking a photo from an android camera, select "Edit photo". The line shape on the photo editing page will display a jagged image,Because the image displayed by decode is too small, it is smaller than the screen size. Therefore, the image will be slightly enlarged during display, resulting in a straight line shape showing a tab.You can modify the size in the getScreenImageSize method. For example, you

Because the decode out of the picture is too small, smaller than the screen. As a result, the image is magnified slightly when displayed, causing the line shape to appear jagged.Ability to change the size of the Getscreenimagesize method, for example, to make 133, larger.Detailed changes such as the following:Modify Getscreenimagesize function in Filtershowactivity.java file about lines 507.private int getscreenimagesize () {Displaymetrics metrics = new Displaymetrics ();Display display = Getwin

Words don't say much directly on the code,@SuppressLint ("Newapi")public static Boolean Issupportfrontcamera () {if (!hasgingerbread ()) {return false;}@SuppressWarnings ("deprecation")int numberofcameras = Android.hardware.Camera.getNumberOfCameras ();if (2 = = Numberofcameras) {return true;}return false;}public static Boolean Hasgingerbread () {return Build.VERSION.SDK_INT >= build.version_codes. Gingerbread;}Get Android infers if the phone supports

Demand: To do Sina Weibo project, can upload pictures and two foreign projects used to take pictures of mobile phones, both need to upload pictures to the serverEncountered problems: Some mobile phone pictures rotated 90 degrees, and some pictures rotated 180 degrees, some mobile phones are normal, the server is required to be positive, so the problem comes, not users can send a photo in micro Bo see is rotated Ah, another project in the rotation of the picture directly matching the problem, thi

Android Access camera uses Camera.open to return a camera object, set the view to display, call the preview function of the camera function Startpreview, stop the preview function is stoppreview!Activity_mail.xml layoutLinearLayoutxmlns:android= "Http://schemas.android.com/apk/res/