Camera resolution (VGA?)

[ge0rdi]

Hello.

I have noticed that that the project takes pictures in VGA (640x480) resolution (ClassControllCamera.cpp#L99).

Though for example OV2640 camera is able to provide UXGA (1600x1200) resolution.

What is the reason for using far smaller resolution that camera is capable of?
Is it because of memory constraints of the ESP device?

[SybexX]

The OV2640 always uses a resolution of 1600x1200, see
https://github.com/jomjol/AI-on-the-edge-device/blob/main/code/components/jomjol_controlcamera/ClassControllCamera.cpp#L547

Maybe someone else will take the time to explain this to you in more detail.

If you are interested, you can find further information there:
https://github.com/jomjol?tab=repositories
https://github.com/espressif/esp32-camera/tree/master
https://github.com/espressif/esp-tflite-micro/tree/master
https://github.com/espressif/esp-nn/tree/master
https://github.com/nothings/stb/tree/master
...

(other example projects use much much smaller resolutions e.g. person_detection)

[ge0rdi]

The OV2640 always uses a resolution of 1600x1200, see
https://github.com/jomjol/AI-on-the-edge-device/blob/main/code/components/jomjol_controlcamera/ClassControllCamera.cpp#L547

Than you. Though the code seems to run only if zoomEnabled. I have zoom disabled in settings (well, if that's the same zoom as this code refers to).

I was mainly asking because I noticed that the watermeter picture on main page has 640x480 resolution (the same for camera live stream).
If the camera takes high resolution pictures, is it possible to get those somewhere?

[SybexX]

The camera does the downscaling internally (no matter whether zoom is used or not), with the ESP32 only the 640x480 image arrives.