Drawing a straight line on camera preview

Question

I am using Camera Api in my app.I want to draw Straight line on camera preview and mark some pixel values on it I am using frame layout to show camera preview.What I have to do..?

score 0 · Answer 1 · answered May 23 '13 at 06:09

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You can use OpenCV for Android they have samples similar to what you want.

answered May 23 '13 at 06:09

Alexander Kulyakhtin

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I dont want openCV its just to see weather the position is correct – devian May 23 '13 at 06:22
Well, then, as the other answer suggests, you have a SurfaceView, right? You can draw on the surface view as they do in SDK Lunar Landler sample. You can have a camera preview callback set up so you are getting the preview pixels and determine somehow what to draw from them http://developer.android.com/reference/android/hardware/Camera.PreviewCallback.html – Alexander Kulyakhtin May 23 '13 at 06:30

score 0 · Answer 2 · answered May 23 '13 at 06:11

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You will need to create a custom camera activity

answered May 23 '13 at 06:11

Arun C

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Then you can draw your requirements on CameraPreview Surface View – Arun C May 23 '13 at 06:13
How.? That is what I asked? is there any example – devian May 23 '13 at 06:21

Drawing a straight line on camera preview

2 Answers2