How to export ESP32CAM footage in Raw?

[sire_passionfruit]

Is there a way to record a HDR photo by exporting it as Raw files? I've seen people talking about recording the raw data from thecameras, but is there a way to use those data to create a Raw image instead?

It'll be great if someone can help me out! (Thank you if you could)

[pratik2440]

Are you talking about the "footage" as in video, or do you just want to capture raw photos like a DSLR does?
RAW format photos are basically just the uncompressed sensor matrix data + associated settings used to capture that data. So if you are running the OVxxxx sensor in non-JPEG mode, you are basically using the RAW mode.
The images will be large in size but the ESP32 can probably handle it with pSRAM (I haven't tried).

The difference between RAW vs JPEG mode is not significant with very low end sensors like OV2640. You will see the difference with Sony IMX series camera sensors or something higher end like that.
For example, OV2640 has a 10-bit ADC, while a DSLR typically has 18 bits or more - several orders of magnitude better, which is why RAW is worth it.