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How to use OpenCV (Python script) to remove the background from these button images so that only the button remains. I wish to be able to re-use the button image to place it onto a different background and not sure what OpenV methods to use. Here are some example button images:

Here is a zip file with many button images to try: http://www.orsa-studio.com/buttons.zip

Note that buttons have the following properties.

1. Their background may not be completely flat with one color, it may be a pattern or a gradient.
2. They have a corner, the corner may have a radius or it may be square.
3. The button will take up most of the image, at least more than 1/2 the width and height of the image.

How to use OpenCV (Python script) to remove the background from these button images so that only the button remains. remains? I wish to be able to re-use the button image to place it onto a different background and not sure what OpenV methods to use. Here are some example button images:

Here is a zip file with many button images to try: http://www.orsa-studio.com/buttons.zip

Note that buttons have the following properties.

1. Their background may not be completely flat with one color, it may be a pattern or a gradient.
2. They have a corner, the corner may have a radius or it may be square.
3. The button will take up most of the image, at least more than 1/2 the width and height of the image.

How to use OpenCV (Python script) to remove the background from these button images so that only the button remains? I wish to be able to re-use the button image to place it onto a different background and not sure what OpenV OpenCV methods to use. Here are some example button images:

Here is a zip file with many button images to try: http://www.orsa-studio.com/buttons.zip

Note that buttons have the following properties.

1. Their background may not be completely flat with one color, it may be a pattern or a gradient.
2. They have a corner, the corner may have a radius or it may be square.
3. The button will take up most of the image, at least more than 1/2 the width and height of the image.