Question whats the difference between Android's screenshot and Camera take picture?

[DIYerLL]

Hi all.

I used Android phone to do: 1) take a screenshot; 2) camera take a picture; and sent both to ESP32_TFT through BLE by MIT APP, the 1) got better display , but 2) got realy bad display, its why I guess maybe the 1) and 2) working at different principle?

Thanks for any clue.

 

[mustang7757]

Welcome to AC!
On an Android phone, a screenshot captures the image currently displayed on the screen, while taking a picture uses the phone's camera lens to capture a real-world image. Screenshots are often smaller in file size and may not be as high quality as pictures taken with the camera.

 

[DIYerLL]

Welcome to AC!
On an Android phone, a screenshot captures the image currently displayed on the screen, while taking a picture uses the phone's camera lens to capture a real-world image. Screenshots are often smaller in file size and may not be as high quality as pictures taken with the camera.

Thanks.
it is true that difference. but the display is too far from an image as:

 

[joeldf]

Thanks.
it is true that difference. but the display is too far from an image as:

I don't know what you're showing, but an android screen shot is simply a function of pressing the power button and closest volume button at the same time and you get a quick shot of what in on the screen. It's usually saved in the "Screenshots" folder under the "DCIM" folder. It's just an image that is the same shape and resolution of your actual screen.

Here's mine. The camera is not used at all for this.