image-capture

How to capture image from custom CameraView in Android?

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try to use Surface View for creating dynamic camera view and set in your required portion. following code try variables set Class level (Global) Button btn_capture; Camera camera1; SurfaceView surfaceView; SurfaceHolder surfaceHolder; public static boolean previewing = false; Following code in onCreate() method getWindow().setFormat(PixelFormat.UNKNOWN); surfaceView = new SurfaceView(this); surfaceHolder = surfaceView.getHolder(); surfaceHolder.addCallback(this); surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); btn_capture = … Read more

Images taken with ACTION_IMAGE_CAPTURE always returns 1 for ExifInterface.TAG_ORIENTATION on some Gingerbread devices

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Ok guys, it seems like this bug for android won’t be fixed for a while. Although I found a way to implement the ExifInformation so that both devices (ones with proper Exif tag, and also improper exif tags work together).. So the issue is on some (newer) devices, there’s a bug that makes the picture … Read more

Capturing a single image from my webcam in Java or Python

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@thebjorn has given a good answer. But if you want more options, you can try OpenCV, SimpleCV. using SimpleCV (not supported in python3.x): from SimpleCV import Image, Camera cam = Camera() img = cam.getImage() img.save(“filename.jpg”) using OpenCV: from cv2 import * # initialize the camera cam = VideoCapture(0) # 0 -> index of camera s, … Read more

How to capture UIView to UIImage without loss of quality on retina display

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Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you’ll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you’re actually getting exactly the same image on an iPhone 4 as … Read more

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