how to Isolate person from image and place it on a different background.

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Bshara Murr
Bshara Murr 2017-11-16
评论： Bhanja Swain 2020-12-28
Hello, my problem is the following, i have images of people in front of a white background, people may be dressed whatever color they want. I have managed to isolate the person from the background i first converted the image into gray-scale, used threshold to isolate the person from the background, used some criteria to only the silhouette then used the command: originalImage(~silhouette) = 0; to get to the person silhouette isolated from the background. However i still have some problems and i need some help. I am not able to isolate the RGB silhouette neither am i able to place it on another background without ruining the background. Here are the results i am getting, i used images that i downloaded from the internet just to test. Any help would be appreciated. Thanks in advance.

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Bshara Murr
Bshara Murr 2017-11-18
Hello again, i solved my problem, in case it is useful for anyone i will be explaining what i did here. The original problem was to cut a person's silhouette standing in front of a white background and place it in front of whatever background. What i did is the following. 1. I transformed the image into a gray-scale image. 2. Applied "threshold" to isolate the person from the white background and got a "binary image". 3. Filled the holes using imfill. 4. Put i condition that whenever a pixel has nonzero value on the binary image, i replaced a pixel from the background image by the corresponding pixel from the original image. Here is what i got. Of course the the position and the size ratios can be adjusted by the user.

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