From my point of view the quality of the pictures could be improved - for me are blurry- but I do not know with what parameter I must play , any advice ?
CHDK cannot make your camera better than it is. But it can help you get the most out of your camera.
Blurry images with UAV shooting are principally caused by four things. These are :
- Shutter speed too slow.
- Focus not set at infinity
- Vibration from the UAV motors.
- Poor choice of camera settings.
1) In your KAP log, the shutter speed for your images is 1/2000. Which is about as high as you can reasonably expect the camera to shoot and should be good enough.
2) Your focus is reported to be set at infinity. Unfortunately, while this normally works well, we have seen several examples of cameras that do not actually focus at infinity when told to do so. If yours is like that (see below) then you should probably disable the Focus @ Infinity option and let the camera attempt to auto focus.
3) Vibration can be a big problem for UAV's. See below for a suggestion on how to pointpoint this as a possible problem. Also, as you are using an S100, you might find this link interesting :
Let's talk Canon cameras4) As far as camera settings go, your CHDK 3.5 log does not report all the settings we care about. But it does tell me that you have continuous autofocus and servo autofocus enabled. Which suggests you have the camera in AUTO mode rather than P mode? And that servo autofocus is enabled in the Canon menus? As complete list of recommended camera setting is here :
Camera SettingsTestingTo identify possible issues with focus and vibration, it is important to test on the ground. Go outdoors, tip your UAV on its side, point it at some distant scenery or buildings, and let the script take several photos. Examine the results for sharpness and blur. Disable the Focus @ Infinity setting and repeat the test. If the second test is better than the first then your camera is not really focussing at infinity so disable that option. If all the pictures still look good on the ground then you need to look seriously at the vibration mounting for your camera.
HTH
