i'm trying to capture image or upload an existing image to my website , when i take the picture from my laptops webcam selected automatically , im trying several ways but none of them works , just wants to choose files

<input type="file" accept="image/*" capture>
<!-- and this one -->
<input type="file" accept="image/*" capture="camera">
<input type='file' id="imgInp" />
<img id="blah" src="#" alt="your image" />

they are not work , i try it in google chrome browser but shows nothing ?!