android camera image recognition

Android custom camera for autofocus and manual focus:Do not call the system camera, because different machines to open the camera rendering the interface is not uniform and can not meet the requirements.So in order to allow the program on different machines to present a unified interface, and can be based on the requir

This example describes the way Android calls the camera feature. Share to everyone for your reference, specific as follows: We're going to call the camera's photo function, apparently The first step must join the call to the camera hardware permissions , after the photo we want to save the picture in the SD card, must add SD card read and write permission, so t

The day before yesterday, I sent an article about the application of bar code recognition software for Android development.ProgramBlog, did not expect to be very popular. I am also very encouraged. Well, I will continue to write down my blog. Some people mentioned in the previous article that I have not written any substantive content. I accept the suggestions. Here I will show you the simplest and most

Link Address: http://www.cnblogs.com/lknlfy/archive/2012/03/05/2381025.htmlI. OverviewGesturedetector is a class used to identify gestures, where gesture recognition is not identified by the gesture in pattern recognition (the user's hand is used in front of the camera), but by gestures (such as sliding, etc.) made by the user's hand on the touchscreen, which can

the coordinate system in this transformation. In Android, the default view coordinate system is the upper-left vertex (0, 0), the x-axis, and the y-axis. This requires that the rect coordinate be transformed. Another difficulty is that this face detection must be started after the camera is turned on, and if you take a photo or stop the preview, you need to activate it again. You need to add a delay when a

Two-dimensional code:It is a black-and-white graph which is distributed in the plane (two-dimensional direction) by a certain geometry to record the data symbol information;The concept of 0-and 1-bit streams, which compose the logic basis of the computer, is used to represent the literal numerical information by using several geometric shapes corresponding to the binary system, and the automatic reading is realized by the image input device or photoel

Setwhitebalance (string), Setfocusmode (string value), etc., followed by Setparameters (camera.parameters) to ensure a successful setup;3. Call Setdisplayorientation (int) To rotate the screen, because in portrait mode, the image captured by the camera is rotated 90 degrees counterclockwise. 注意: This method only affects the screen display (that is, the UI), does not affect the

is nothing more than two kinds, the first is camera shooting, the second is from the local album to get. 2, I created a folder on the SD card, which has two URIs, one is used to save the original picture when the photo, one is to save the cropped picture. Before I thought about using the same URI to save the picture, but in practice encountered a problem, when the camera does not cut, then the next time f

(intent.action_pick);//Open album Inte Nt.setdataandtype (MediaStore.Images.Media.INTERNAL_CONTENT_URI, "image/*"); Intent.putextra ("Output", Uri.fromfile (Tempfile)); Startactivityforresult (Intent, Open_gallery_code); /** * Crop picture * @param uri/public void Cropphoto (Uri uri) {Intent Intent = new Intent ("com.android.ca Mera.action.CROP "); Intent.setdataandtype (URI, "image/*");

= extras.getparcelable ("Data");Bytearrayoutputstream stream = new Bytearrayoutputstream ();if (photo!=null) {Photo.compress (Bitmap.CompressFormat.JPEG, N, stream);//(0–100) compressed filePic.setimagebitmap (photo);}}} Android Call system camera take photos and clip In this way, we can do the function of photographing and editing pictures by calling the system

Overview There are two ways to use Camera: using an existing app through Intent and building your own app through Camera. Camera statements If your application wants to use Camera, you must obtain the license and add the following statement to AndroidManifest. xml. If your application must have a

1. Start camera1. An activity starts the call process:Oncreate () --> onstart () --> onresume ()Oncreate ():1. You can add the layout file and draw the interface.2. Enable the thread, start the hardware camera, and call cameraholder. instance (). open () to get an android. hardwarecamera instance mcameradeviceEnsurecameradevice () --> cameraholder. instance (). open () --> mcameradevice. getparameters (); E

Article Source: http://blog.csdn.net/dany1202/archive/2011/01/26/6164450.aspx 1. Start camera1. An activity starts the call process:Oncreate () --> onstart () --> onresume ()Oncreate ():1. You can add the layout file and draw the interface.2. Enable the thread, start the hardware camera, and call cameraholder. instance (). open () to get an android. hardwarecamera instance mcameradeviceEnsurecameradevice (