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I have this file that will always have a white background and I would like to separate the elements into separate files, but I don't know which function to use.

This is the file:

enter image description here

img = Import["https://i.stack.imgur.com/WydPS.png"]
ColorQuantize[img, 20, Dithering -> False]

I would just like to extract the images as follows:

enter image description here

enter image description here

enter image description here

If this question is very simple or is a duplicate, I would like a guidance

I have Mathematica version 11 available

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Values @ Rest @ ComponentMeasurements[img, "MaskedImage"]

![enter image description here

Values @ ComponentMeasurements[ColorQuantize[RemoveBackground[img], 5, 
     Dithering -> False], "Image"]

enter image description here

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    $\begingroup$ I tested it with images with a white background, but with shadows in the images and it didn't give the same result. It worked well with colors without a gradient. I imagined something like changing the white background of an alpha channel. $\endgroup$
    – LCarvalho
    Aug 31 '20 at 20:00

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