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Mask + Image without black on destination

asked 2012-07-21 15:33:36 -0500

Pat gravatar image

Hi, essentially I have a mask and I make a bitwise_and between the mask and an image. This works wonderfully, but I cannot find a way to ignore the black on the destination image. Here's the process for more clarification :

http://img.photobucket.com/albums/v220/jaeko/mask.png

Essentially, I do something like this:

//Should dst have an alpha channel to replace black by a zero-opacity pixel?
cv::bitwise_and(image, mask, dst, mask???);
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What values do you want to get on border?

AlexanderShishkov gravatar imageAlexanderShishkov ( 2012-07-21 16:13:36 -0500 )edit

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answered 2012-07-21 16:15:34 -0500

AlexanderShishkov gravatar image

I don't understand what is the purpose of using bitwise_and in this case. If you want to copy some part of image to the other image, you should use:

image.copyTo(dst, mask);
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Asked: 2012-07-21 15:33:36 -0500

Seen: 423 times

Last updated: Jul 21 '12