how to force a photo into black and white

Question

So if the user takes a photo in color, I want to save it as a black and white picture.

Could someone help me?

i want store in Black and white mode when i take photo from camera.. — SAM Bhadani, Mar 18 '11 at 05:45
Looks like you need some image post-processing after taken from the camera. So, Basically your question is how to convert color Bitmap to the grayscale and save it? — Zelimir, Mar 18 '11 at 08:32

score 2 · Answer 1 · answered Mar 18 '11 at 08:06

2

you have to set camera parameter by see parameter

answered Mar 18 '11 at 08:06

Sunil Pandey

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score 0 · Answer 2 · answered Apr 14 '15 at 14:00

0

cameraParams.getSupportedColorEffect(); and check if it contains Parameters.EFFECT_MONO then set

cameraParams.setColorEffect(android.hardware.Camera.Parameters.EFFECT_MONO);

mCamera.setParameters(cameraParams);

answered Apr 14 '15 at 14:00

Zar E Ahmer

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score 0 · Answer 3 · answered Jun 15 '11 at 13:24

If you've got a rather crappy phone (I do - Xperia X8), then you won't be able to apply any color effects at all. To find out what color effects are supported by your phone, you could use something like this:

Camera.Parameters params = cam.getParameters();

try {           
    for (String e : params.getSupportedColorEffects()) {
        Log.d(TAG, "Effect: " + e);
    }
}
catch (NullPointerException npe) {
    Log.d(TAG, "No color effects supported by this camera.");           
}

how to force a photo into black and white

3 Answers3

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