Using different mixing levels for foreground and background

Most of the pictures are taken with people in some kind of background scene. We usually want to make the background scene artistic, but we may not always want to stylize the people that much because we still want the people in the picture to look like the original people. In this post we demonstrate the technique of using two different mixing levels in this site to create two different stylized images, and use grabCut to separate the foreground and background and then combine the low mixing foreground and the high mixing background. Here we start from the raw picture:

To stylize this wedding photo, we used the following style:

We created two stylized images with a high mixing level. The background views look nice but the people are over stylized.

We then create a low mixing image. The people looks good but the background are not stylized enough.

 To combine the two images, we use grabCut algorithm to create a mask like below. The exact code which created this mask can be found here.

Then combing the high mixing and low mixing image using the mask, we get the following image. See how the background is very artistic while the foreground (the people) are still nice and real.

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