android-camera

问题 In my Camera2 API project for Android, I want to set a region for my Exposure Calculation. Unfortunately it doesn't work. On the other side the Focus region works without any problems. Device: Samsung S7 / Nexus 5 1.) Initial values for CONTROL_AF_MODE & CONTROL_AE_MODE mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO); mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON); 2.) Create the MeteringRectangle

问题 In my Camera2 API project for Android, I want to set a region for my Exposure Calculation. Unfortunately it doesn't work. On the other side the Focus region works without any problems. Device: Samsung S7 / Nexus 5 1.) Initial values for CONTROL_AF_MODE & CONTROL_AE_MODE mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO); mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON); 2.) Create the MeteringRectangle

问题 We are trying to build something similar to Instagram Camera screen. i.e allow the user taking square photos. While doing it out U.i must be able to let the user see the camera on fullScreen mode. We want to force the user to take an image in a portrait mode Getting camera possible ratio's We are calculating the best ratio available from camera by private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) { final double ASPECT_TOLERANCE = 0.1; double targetRatio =

问题 We are trying to build something similar to Instagram Camera screen. i.e allow the user taking square photos. While doing it out U.i must be able to let the user see the camera on fullScreen mode. We want to force the user to take an image in a portrait mode Getting camera possible ratio's We are calculating the best ratio available from camera by private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) { final double ASPECT_TOLERANCE = 0.1; double targetRatio =

问题 I am using the following parameters for my custom camera mCamera = getCameraInstance(); params = mCamera.getParameters(); params.setFlashMode(Camera.Parameters.FLASH_MODE_AUTO); params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE); params.setSceneMode(Camera.Parameters.SCENE_MODE_AUTO); params.setWhiteBalance(Camera.Parameters.WHITE_BALANCE_AUTO); params.setExposureCompensation(0); params.setPictureFormat(ImageFormat.JPEG); params.setJpegQuality(100); params.setRotation(90);

问题 I am creating an app in android in which user will be able to take a picture from front camera in portrait mode only. I have achieved fixing the camera view to portrait but when a picture is taken it appears rotated. The worst thing is that the direction of rotation is different in different phones, in one phone it is right rotated whereas in another it is left rotated. Here is my code snippets To make sure activity plays in portrait only <activity android:name=".MainActivity" android:label="

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I just wanted to integrate ZXing API in my android app, but cant find the proper documentation. 回答1: Follow these steps: 1) Download the source code here: http://code.google.com/p/zxing/source/checkout 2) Import

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I just wanted to integrate ZXing API in my android app, but cant find the proper documentation. 回答1: Follow these steps: 1) Download the source code here: http://code.google.com/p/zxing/source/checkout 2) Import

问题 I am trying to implement a camera app. and checking examples. Some examples contain following manifest feature: uses-feature android:name="android.hardware.camera2.full . I have checked official documents and google examples and none of them mentioning existing this feature. (or I am missing some). What is the source of this feature and what is the difference between android.hardware.camera ? Edit: What confuses me was those examples on googlesamples : https://github.com/googlesamples/android

问题 99.9% of all answers on a question in title are as follows: When you searching through the List<Camera.Size> , provided by Camera.Parameters#getSupportedPictureSizes() try to find the size of the same aspect ratio as the camera's preview size which you set via Camera.Parameters.html#setPreviewSize(int,int), or as close as possible. That's fine, but what if I can't find the picture size of the same aspect ratio as in preview size (Android gives you no guarantee that for every preview size